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1961-05O.,DINAI~TCE No, 2.13 Bill No. 1961-5~ AN OkDINANCE REGULATIl~tG Tf-IE COlIS_'.UCTION, 0r'E.ZATION AND MAINTENANCE OF S~'~I%-iI~ilNi"r rOOI~S; Pi<LSC~:IhI_Nf" STt1N- DA~-~DS AND RE~;U I~~EI~iENTS FO: Tt1E CONST U CT ION, OFEi'~AT ION AND MAINTEi~?Ai1CE OF Si~TIItu~.Ii~G COOLS ~`.IID Se1I~iR:II'?G POOL E~,UIP~iENT AND AP'AiZATUS; Pii%SCi~IBING DUTIES AND ~Es- S FONS IB ILIT IES OF TIE ~-IEALTH OFF ICEt ~,TdD Ii~1S FECTION DIVISION; AND P;i~ESC~iII~II~?G YEI~?ALTIES f~0.; T.~ VIOLATION OF ITS P:OVISIONS. THE VILLAGE COUTZCIL OF T<lE VILLAGi{: 0~' .cICtiFIELD O:DAIIdS r~S FOLLI?ti7S: Section 1. Short Title, Ti1is ordinance shall be knozan and may be cited as the Y1Swimr~ing tool Ordinance for the Tillage of ~ichf field. rt Section 2. Definitions. Y~or the purpose of this ordinance' the following terms, phrases, words, and their derivations shall have the meaning given herein. ':.hen not inco~~sistent with the context' words used in the present tense include the future, words in the plural number include the singular number and ~JOrds in tie singular number include those in the plural number. The v~~ord F~shall~~ as used herein is mandatory and not merely directory. A. «HLALTII OFFICEl~~ is the i-Iealth ~3fI'icer of the iTillage of Lichfield, or his authorized representative. B. t~StiJINII~iING POOL~p is any constructed pool, used for swimming or bathing, over twenty-four (~4) inches in depth, or faith a surface area exceeding 150 square feet. C. ptRESIDEJTIAL S~rTI%i~IING POOL'S is any constricted pool which is used, or intended to 'oe used, as a swirc~r~:~ing pool in con- nection faith a single family residence, and available only to the iar;~.ily of the householder ,~.nd his private guests. D. T-PUBLIC 0;; SEMI-PUELIC t~II4~i~iIl~tG POOL~~ is any swirruning pool other than a private swir~~.:ing pool. E. TPI~AIN OUTLET'T is the outlet (s) at the deep portion of the pool through which the r~zain flow of water leaves the pool when being drained or being recirculated. F. rPNiAli~i SUCTION« is the line connecting the rnain outlet to the pump suction. G. pPVACUUbi FITTING« is tl~e fitting in the 7aall of the pool which is used as a convenient outlet for connecting the underTaater suction cleaning equipr~2ent. ~I. "VACUUM PIPING~~ is the piping ~~r?Zich connects the vacuum fitting to the pump suction. Ordinance I~~o. 2.13 ~ontinL~ed (2) I. rr%3ETUtZN PIrINGrr is the piping taiich carries the filtered ~Tater f roi~: the filter to the pool. J. rrINLETr' is t~3e fitting or os~ening through T~I1ich :filtered water enters the pool. K. rrFACE PIPINGrr is the piping ~Tith all valves and fittings t,~hich is used to co~:inect t~~e inter system together as a unit, L. rrflECIi~CU;JATIT~TG PIPIi'~Grr is ti3e piping :i rom the pool to the filter and return to the pool, through ?~:~ich the <<Tater circu- lates. N1. -rBACI~I~IASH PIPING" is tine piping eahich extends from the baci~wash outlet of the filters to its terminus at the point of disposal. N. rrFILTERrr is a r~~aterial or apparatus by Z~7L~ich water is clarified, 0. rrUNDERDRAII~Trr is an appurtenance at the bottom of the filter to assure equal distribution of water ti~rough the filter media. P. rrFILTER ELEAIENTrr is the part of a filter device ~tiThich retains the filter media. Q. rrRECI.RCULA~l'ION ShII~II~iERr' is a device connected with pump suction used to skim the pool over a self-adjusting weir and return the water to the pool through the filter. R. rrFILTE~~ A-iEDIAr- is the fine r~laterial t>>hich entraps tape suspended particles. S. rrFILTER SARTDrr is a type of filter media. T. 'rFILTE~ ROCKrr is graded rock and gravel used to support filter sand. U. 11FILTER AIDrr is a diatomite tyre of filter f~~edia. Y. rrDIATONIITE TYPE FTLTE~~'r is a filter designed to ~~e used c•~ith filter aid. jJ. 'rDIATONiITErr (Diatomaceous earth) is a type of filter aid. ~;. rrSKIr~1ER-FIL~1'ERrr is a recirculating skii~lmer ~aitl~ a filter form- ing an integral part of the device. Y. rrFILTE~ SEPTUI~1rr is that part of tine filter element in a diatomite- type filter, upon ,~hich a cafe of diatomite is deposited. Z. rrPRECOATrr is in a diatomite-type filter the initial coating of filter aid placed on the filter septuri~ a'c t7e start of the filter cycle. Ordinance A,o. 2.13 Continued (3) AA. rrFODY I'EEDrt is filter aid fed into a diatomite-type filter throughaut the filtering cycle. BB. p-FILTER CARTRIDGEt, is a disposable filter element which erszploys no filter aid. CC. "CA~'.TR1llGE FILTER~P is a filter using filter cartridges. DD. ~sDESIGN RATE~f is the average flow rate over the filtration Cycle. EE. t-POOL DEPTI~Spt is the distance between the floor of the pool and the maximum operating level when pool is in use. FF. ~rP00L DECI~T~ is the finished area around the pool. GG. '~jtTIDTH AI~TD LENGTHtT shall be determined by actual water di- mensions. xIII. 'LIFELINE ANCHO~STp are the rings at transition point. II. '~TRAIJSITI01~ POINT, is the point bet~~reen shallow and deep area. JJ. '-POOL MALL" is that portion of the pool that is vertical or inclined more than 45° to the vertical from the horizontal. KK. i1P00L FLOOR1T is that portion of the pool that is horizontal or inclined less than 45o to the vertical from the horizontal. Section 3. Approval by i~ealth Officer: Cons ruction Permits. Before work is commenced~on the construction of a swimming pool, or any alteration addition, remodeling or other improvement to a s`,rimming pool, three (3j sets of identical plans and specifications and pertinent explanatory data shall be submitted to the i~ealth Of~'icer for approval relative to design, operation and maintenance insofar as health and safety features are concerned in accordance ~~rith the standards prescribed by this ordinance, as evidenced by a suitable endorser~lent upon such plans and specifications. approval by the aIealth Officer shall not pertain to design for structural stability. The Inspection ivision sha11 not issue a permit for a SGJlrfli111ng pOOI until the plans and specifications there- fore have been thus endorsed 'oy the :Iealth Officer. The application to the Inspection Division for a permit to construct a swimming pool or to construct any alteration, addition, remodeling or other improvement to a swimming pool shall be submitted in such forms and be supported tTitil such information and data, as well as plans,. specifi- cations and pertinent explanatory data as promulgated hereunder. Section 4. Mans to be Submitted to the ~lealth Officer and Inspec- tion Division. Plans, specifications and pertinent explanatory data required to be submitted in connection =.~ith an application for a perriiit to construct a sW13~~~°lilg pool or any alteration, addition, remodeling or Ordinance i•To. 2e13 (Continued (~?) ~7tler 1mprOVeiilent "~,~® a swlrnF.l.~ilf~'; pOC?i Shall CGf;ply [-i~lt:1 ti2e fOllo~ring ret~uiretnents a.nd include t~{e follo~,ri.ng peLans a~?d infor~~aation as FTell as such other data as r~_ay be reasonably requested by the ~~ealth Officer anti Inspection Division. (1) clans shall show, 'out not be limited to the general layout of the entire building lot on Tal~i.ch the pool is to be located, dis- tances of the pool from the lot lines, ~;'star supply systems, buried sewers and sewage disposal syste~rs, utilities (electric, gas, tele- phone, etc.} or oti~er sources of contamina~ion T•rithin fi8ty (5©} feet o ~' the pool and be drat-ern to a. scale of not smaller than one- fourti~ (~) inch =one (1) foot thus indicating all dimensions' in- cluding the effective length, width, depth, and raidth of the pool decl~ and similar it ems : (2) Cross-sectional views of the pool: (3) A cross section of scum gutters and/or si,immers: (4) Pipe diagrams showing material and size oi° all pipes, inlets, outlets, rnaice-up water lines, vacuui2l lines, T~Jaste a.nd dis- charge lines, circulation and other piping: (5) The pool equiprAlent layout, showing filters, their location, pumps, chlorinators, cher~ical feeders, flow t:~eter gauges, sight glass, strainers, hair and lint interceptors, if one is proposed the dimensions of filter room, its location, floor drain, sumps and other pertinent information: (6) The liquid capacity of the pool: (?) the kind, number and size of filters, including the square footage of tine filter area in each unit: (8) Rated capacity of the filter in gallons per minute: (9) A description of cherr:_ical feeders for soda ash and alum, if used: (1®) The type, Find and description of chlorinator: (11} The type anc~ range of testing ec~uiparent, incluc{ing chlorine: (12) source of a~7ater supply. section 5. Construction in ~'~ccordance c•Tith ~'rpproved Plans. till swimming pools, appurtenances, water supply and drainage system and other features shall be constructed i~~ conformity ~~rith the approved plans. If any c'•.eviations f ror- such plans are desired, a supple~~entary plan covering that portion of the wori4 involved shall be filed for approval c,nd shall co~~.form to the: provisions om this Ordinance. section 6. ~ ermit Fees. The fee for a per~~lit for t~~P erection or construction of a s~rir~~~~.ing pool shall be `yen Dollars (.10.00) for each 5O0 square feet of surface area and one (1) dollar ~? or each Ordinance i~o. Z.;l~ Continued (5) adriitional 100 square feet or fraction th.ereoi as deterr,.ined by the plans ~:nd specifications subi~litted L~rith the application for perr.~it. Section 7. Construction. `T'he design and col~struction, as Drell as all equipment and materials, shall cor.ply L~Tith requirements herein. (1) Structural Design. the pool structure shall be engineered and designed. to Lwithstand t~:e expected forces to Lrhich it Laill be subjected. `The L~ralls of a pool incorporatinb a plastic liner shall be of masonry construction and ti2e botto~~~ ~I2ust be supported by _~ ine sand at least six (6) inches in depth. (2) Wall Design. ~'o a depth up to three (3) feet from the Laater level, the wall shall be vertical. ITO right angle projection shall be permitted with exception of steps at shalloL:~ end. (3) Floor Slopes. the slope of the floor on the shallow side of transition paint shall not exceed one (1) foot vertical to ten (10) feet horizontal. ~~,he transition point between shalloL:r and deep L17ater shall occur in a water depth of at least five (5) feet, pro- vided that this rray be f ol.Ir and one-half (42) feet if a safety line is erected at this point. rf1e maxi~t~um slope L~rhere L~rater is five (5) feet or m-ore in depth shall not exceed one (1) foot vertically in eac~ three (3) feet horizontally, provided that rile floor slope from the point of rnaximur~~ c'epth to the deep eild L~wall, a one (l.) to one (1) ratio :gay be incorporated. (4) OverfloT:T a-nd surface l,raina~e. `T'he pool and surrounding area shall be constructed and arranged in such a manner that no splash or overfloL~r water shall return to the pool. i?o surface or roof drainage shall be permitted to enter the pool. (5) Finish and Cove. x-ool floor and walls shall have a clean- able, LJhlte or si~.iilar light-colored and irrLpermeable surface. the pool floor shall be slid resistaizt. There shall be a minimum cove or rounded corner of one (1) inch radius or more L~r~aichever the case may be at the junction of the pool floor al~Ia :•ralls and other sir_ilar in- terior construction. `::here the water depth is less than five (5) feet, the maximur~= radius of such cove shall be tLwTelve (12) inches. (6) ~-~andholds. Handholds shall be provided and col~sis t of a bull-nosed coping not over two and one-half (22) inches thicl, for the outer two (2) inches or an equivalent approved handhold. lh~ hand- hold shall not b~ more than hsrie- -(=9)" inehes~abovei-the`'normal~'L~~.t~~° line anc? shall extend around the entire periphery of t'Ze pool. (7) cool i~ecic. ~Jnobstructed dec'~ ~_reas not less than forty- eight (~-~) inc~ies wwide shall be provided to exte~~d entirely around the pool. The deck area shall be constructed of impervious material, and the surf ace shall b e of such as to b e smooch a.nc~ easily cleaned and of non-slip construction. ~~he dec:~ small 'nave a pitc~i of at leas'c one-fourth (4) inch to the foot, cesigned so as to prevent baci~ drain- age into the pool. If deci; drains are provided drain pipe lines s'fall be at least tLro (2) inches in c~ia~~_eter9 drain openings shall Ordinance No. 2.1a Continued (6) ha~~e an open area of at leas-~ four (~?) Limes ~;hc cross-sectional area of the drain pipe. 'fhe deco drain syster~~ shall have indirect con- nection to the sanitary se~:Ter. T~~e decl: drains shall not 'oe connected to the recirculatx.on syster~_ piping. (8) Steps or :udders. lti~TO or more means c9f egress in the form of steps or ladders shall be provided for all private residential swimming pools. ~'~.t least one such means of egress shall be located on a side of the pool at the deep end and one at the shallow end of the pool. Treads of steps and ladders shall be constructed of non-slip material and shall be at least three (3) inches wide for their full length. Ladders and step holes small have a .handrail on 'ooth sides. ;taps shall be located only at the shallo~~T end of a pool. (9) Diving Iarea. I~Ainianum depths a.nd area shall be as follows Minimum Minimum Water Depth. Distance Distance Distance T•Iaximum Five Feet of Deep from Deep Minimum from Side Distance from Tip of Paint from Point to Diving ~~1all to Above Diving Diving Transit~.on Board Center of Boards eater Board ?{gall Point Overhang Board cr ev el 1811 81 101 101 221 71 Inter- mediate 3011 81 111 11' 221 ?21 1 Iveter 39.3711 821 121 121 31 81 At least thirteen (13) feet of free and unobstructec headroor~l shall be provided above diving boards. One depth marring shall be provided in the deck or. the wall of the pool above the high water line indicating the greatest depth in feet. Diving structures shall be securely anchored. ~~ For each one (1.) inch of decrease of diving board height below eighteen (18) inches, required minimum de;~th may be decrcased one (1) inch® Section 8. ~~lechanical. .081. ~ filters. ~ver~T pool shall be ec;uipped ~Tith a recircu- lating system capable of filterin€ tt~e en~cire contents of the pool in tt,~elve (12) hours or less. (1) i+ilters shall be capable oa maintaining Life clarit of the ~•rater to permit the ready ldentif.~ca~cioi~_, tl~roug'~ an eight (8~ foot depth of eater, of a disc two (2) inches in. diameter, zJhich is divided into four (4) quadrants in alternate colors of red. and white. Ordinance ~?o. 2.1:x, Continued (7) (2) Filter capacity shall be such that it need not be cleaned more frequently than once every four (4) days under proper conditions of water and operation. (3) till pressure filters shall be equipped w?t~1 influent anc~ effluent pressure gauges to determine the pressure differential and frequency of cleaning, fill atiler filters shall be equipped z~rith at least one pressure, vacuum or compound gauge, as applicable, t~hich shall be positioned in such away as to deterrninc the differential across the filter and the need of cleaning. (~'t) x,11 pressure filter systems shall be equipped ~~Tith an air release at the high point in the system. (5) Operating instructions shall be posted on every filter system. X11 valves shall be properly designated, indica%ing their purpose. (6) i7here dissimilar metals are used in the construction of the filter, which may set up galvanic currents, then s.~titable pro- vision shall be rcade to resist electrolytic corrosion. (7) Filters shall be so designed a.nd installed that they can be readily disassembled and the filter elements removed. .0811. Pressure Filters. 1Jressure filter systems utilizing sand or other equally effective filter media acceptable to the fIealth Jfficer shall be designed and installed to operate at a rate not to exceed three (3) gallons per minute, per square foot of filter area and to backwash at a minimum rate of t~~elve (12) gallons per minute, per square foot of surface area. (1) Filter tanl~s shall be fabricated to meet the 1956 ASNIE Specif ications for non-code pressure vessels, with the exception that standard type dished and flan ed heads may be used. f anlcs shall be built for a rr.inimum of fifty ~50) pounds working pressure and tested at 150 PSI. The filter underdrain shall have an effective distribution of at least twenty-f five (25) percent of the cross sectional area of the tank. Tanis shall not be placed underground, (2) Filter tangs shall be supported in a manner to prevent tipping or settling. .0812. Filter i~_edia S~~ecifications for Sand 1+ilters. (1) The principle filter media shall be as a minimum' a hard, uniformly graded silica material with effective particle sizes, Between 0.45 and 0.55 millimeters in diameter, with uniformity co- efficient of 1.75. ^here shall be no limestone, clay or deleterious matter present. (2) The principle media shall be no less than tcaenty (20) inches in depth with a freeboard of no less than t~relve (12) inches. {3) There s:~all be no less than four (~-) grades of rock, which shall be clean, non-crushed, rounded, non-porous, non-calcareous material. Ordinance INTO. 2.13 Continued (8) (4) The total depth of tl~e rock supporting bed shall be no less than sixteen (16) inches ant each gratis shall 'oe tETO (2} inches or greater in depth. .~ach layer of roc?: shall be leveled to prevent intermixing of adjacent grades. (5) The top layer shall vary in size bev~~reen one-eighth (1~8) inch and one-quarter (4) inch. The next layer small vary in size between one-quarter (4) inch and one- half (2) inch. The next layer shall vary in size bet~~reen one-half {~) inch and three-quarters (3/4) inch. The bottomilayer shall vary in size betF~reen one (1) inch and one and one-half (12) inches. (6) Other filter media and related filter and backwash rates may lie used subject to approval by the Health Officer. (?) Patented under drain systems may be used provided that they shall give results ~rllich are equal to or 'better than that above. .0813. Diator~2ite 1 y;~e ii filters. (1) Diatorilite type ''filters shall be designed for operation under pressure or vacuum. The design capacity shall not exceed two (2) gpm per square foot of effective filter area. (2) The deterzrination of the filter area shall be made on a basis of a true and effective supported Sept-ua~i surface. In the case of fabric septums, the area computation ~,tiTill be made on the basis of measurements of the septum support in a reasonable constant plane. ~'irea allowance shall not be granted for folds in the septum fabric or deviations in the septum surface trhich would easily bridge. (3) The tanl~_ containing the filter elements shall be con- structed of steel, plastic or ot_~er suitable material, ~~rhich will satisfactorily provide resistance to corrosion, t~rith or without coat- ing. rressure filters shall be designed far a working pressure equal to the shut-off head of the pump, T~Tith a saf c ter factor of four (~~) . =t7acuum filters shall be designed to ~,TitlZStanct the pressure developed by the weight of the T~ater contained therein and closed vacuum filters shall, in adc'ition, be designed to ~,~ithstand the crus~ling pressure developed under a vacuum of t~~Tenty-five (25) inches of mercury, both ~~ith a safety factor of 3.5. In either type filter t~~here the tan.% is fabricated from material `>>hich is corroded by water, then a suitable corrosion resist- ant coating shall be applied to retard such attack. (~~) The filter elements shall be fabricated of corrosion resistant r~:aterials throughout. They shall 'oe designed to be ade- quately resistant to a differential pressure betti,Teen influent and effluent of not less than the maxir~lum pressure, sThich can be developed by the circula~ing pump ar_d shall be o~' adec;uate strength to -~esist any additional stresses developed c'.uring the cleaning operation. The filter septum, on ~rhich the f filter-aid cake is deposited, shall be provided t~rith openings, the minimur; diz~cnsions of Trhich shall be not greater than 0.005 inches. Ordinance P~?o. 2.13 Continued (J) (5) : ro~Tisions cha.ll be zrac:e to i_1- rocluce filter aid into the f ilter° in such a z,~ay as to evenly precoat tine filter septum before the filter is placed in operation. 't'ile amount of filter aid shall be selected to provide at last -the s~~ne protection to the filter septum as would be provided by the use of 0.1 lbs. of filter - . aid per square loot of filter area per -t~~~enty-four (24) hours. Use of additional equipment to provic'e boc:y feed to the filter influent is optional. there provided, s;,zch equipr_.ent sI1a.11 have the capacity to continuously and uniformly feed at a rate of not less than 0.1 lbs. of filter aid per square foot of filter area per t~1T~'nty-four (2~s) hours. (6) The filter piping shall be so cesigned that during the precoating operation, the effluent from the filter shall be re- circulated or run to waste az~zc' shai.l not be fed into the pool until free of filter aid. ran exception to dais requirement mar be made if the filter septum is of such construction that no perce1otible quantity of filter aid is introduced into the Fool then the effluent discharges therein. .0814. Cartridge Type Filters. Cartridge type filters are those where the cartridge itself is the filter aid. Cartridge filters r~.ay be eitizer pressure ®r vacuum type ~.nd are subject to the same general piping and tank specifications as diatomite-ty~~e filters. =ieplacement cartridges are divided into two types: depth and area. General specifications, hoti,rever, are the sar~.e for both. Cartridge filters shall not require the addition of any flocculating agent such as ammonium alum, alluminur~; sulf ate or potassium alum. They shall be subject to the same requirements listed under Section 000.081 for all types of filters. 1'.11 types of cartridges shall have sufficient structural strength to resist rupturing, channeling, collapsing, or bursting at a maximum pressure differentials of 50 psi. Cartridge seals shall be so designed as to prevent any by-passing of unfiltered water. If provisions is made for back-zti7asiling, it shall be so arranged as to not perr~.it any bacl.wash water to enter t~ze recirculating system. Tito residue shall be permitted to remain in the filter-housing that could be picked up in the next filtering cycle. .081.1. Cartridge dements Shall ~;e Divided in`1~tao lopes:_ (1) Depth type cartridges are elenents where the porosity varies from tl-ze inlet to the discharge surface. They shall izave sufficient depth to provide adequate dirt-holding capacity and be designed for a flow of no more ti3an one (1) gallon per minute per five (5) cubic inches of volume wit~z a pressure drop not to exceed two (2) psi across clean cartridges anti not to pass an,T particulate matter larger than ti,Tenty-five (25) rtlcronse (2) Hrea or surf ace ty,~e cartridges a~~e those ~~7iclz rely on the surf ace area for their dirt-holding capacity and they should follow the sa~~~e flow per square foot of area as da.atoi:_ite filters ~ namely: three (3) gallons per r°inute per square foot of :`'filter area for vacuum filters. Ordinance Info. 2.13 Cjantillued (l.~%~ .0814L. Additional ~tag~da.rds ror Cartridge Type Filters. (1) tiilters shall be capable of f iltering entire con- tents in twelve (12) hours or less. (2) Filter capacity shall be such that it need not be cleaned more f regitently than once ev ~•ry foi.~r (~) days under proper conditions of ~z~ater and operation.. {3) E~11 filters shall be des igned so as to perl;~it easy rerr_oving of the cartridges. .082. recirculation Purr~ps. The recirculating pump shall have sufficient capacity to provide the rated flows of the filter syster~~, ~tiTithout exceeding the head loss at which the pump trill de- liver such flows. the pump motor shall not be operated at an over- load which exceeds the service factor. (1) %'ool pump shall be equipped on the inlet side with an approved type hair and lint interceptor. Tlie basi~et of the inter- ceptor shall be non-corrosive and have an open screen Burr"ace of at least four (4) times the cross sectional area of the inlet pipe. (2) iahen the filtering and pumping equipment is installed above ground at a level below the overflos~ level of the pool as may be dictated by the contour of the plot on ~~~hich the pool is construc- ted, a valve shall be installed an the main suction line located in an accessible place outside of the walls of the pool. .083. Pool Piping. ~'he pool piping shall be sized to permit the rated flot~~s for filtering and cleaning ?;~iti~out exceeding the maximum head, at Tahich the pump ~oill provide such flo~•TS. In general, the z.~ater_ velocity in the pool piping should not exceed more than ten(10) feet per second. .,%ere velocity is to exceed ten (10) feet per second sur~:r~ary calculations shall be ~~rovided to shots that rated flows are possible ~-,i th the pump and piping provic~~d. The recirculating piping and fitting s shall r_~eet the following requirer:~ents:. (1) `~~here vacuum fitting(s) is~are provided, it~they shall be located in an accessible position(s) belorT the c•~ater line. (2) i~ool recirculation piping, passing %hrough the pool structure, shall be copper tubing (with a tn~_nimurn Nall thickness of type ~r~,rr) brass or an approved equal. (3) irool piping systems shall be constructed of materials prescribed in the village plu,:bin~ coc':_e, provided teat as a rs inir~?um " polyethlene plastic materials, meeting the standards prescribed by Cor~r~ercial Standard 197-59 published by the U. ~. uepartr~lent of Commerce and bearing the hTational sanitation Foundation seal of ap- proval, may be used except f~~r t=tat portion of the s~Tste~n passing through pool structure. .1i~ere a ~.Tat,er heater is incorporated into the recirculation sys'tc~r, the output te~_perat:are shall be regulated in such. a manner as to not effect the strengt~~ os any plastic piping used. the rr_inimum pressure rati~~.g or• plastic accep-table herein shall be at least 75 pounds. Ordinance l,~o. 2.1.3 Continued (11) {Q.) Ins'callation c).f -~,he ~:~ol pi~Jri~,, elccept for the pool ~~rater supply lime, rrtay i:,e doi~ie by the pool coi~itractor subject to inspection prior to covering the system. .0831. ecirculatin~ Sl:irtur~ing Devic~.es. ._:ecirculating sl:iiriming devices shall be provided to shim tale surf ace of the pool Frith a minimur of at least one (1) unit installed to serve each pool with such additional units as rnajj be requir~c~ to provide a ~«iiiimum of one for each six hundred (~OO~j sgL7are feet of pool grater surface or fraction thereof. she location of recirculating sl~i~~,~iers and the pool inlets shall be carefully deteri~~ined so ;;'gat the pool inlets assist the skinuning action to adequately remove file surface film on tine pool water surface. ,.hen pools are ~.i°regularl_y or specially shaped, skiinrr:iilG devices shall be locates ii1 each offset. (1} ~fhe recirculating sl~irel~:ers shall ~~e of sufficient total capacity to be a'ole to re~E~.ove forty (~0) to sixty (60} perceiat of the content of the pool9 tl~e main outlets at the bottom of the pool also to be of sufficient capacity to remove ~ orty {~-0) to sixty (60) percent. The sl:iii~ining action shall be as uniform as practicable, with good circulation toward the ski~::i~~ers ~~.i1d F~Titl~out T'dear~ spots" on the pool tirater surface. .,here skir_~u~1er-filter co~~binntion units are to be installed, the influent s~iall be regulai.ed in such a manner as to consist/ of forty (~~0) to sixty {b0) percent passing through tine skimmer section of file device and forty (~0) to sixty (60) percent of the flora from the main drain. (2} It shall be possible to regulate the rate of flow through the skimming device. ~ach device shall be individually valved and capable of being discharged to ~raste. (3) the floating craft in the recirculating sl.ir~r:er shall be self-adjusting to variations in pool water level aver a range of at least three (3) filches. (4) A device shall be incorporated therein to prevent air- lock in the suction line. (5) An easily reir~ovable aild cleai2ablP uasi:et or screen shall be provided to trap large solids. (6} Skimming devices shall be built into the pool wall. .0832. Inlets. Iizlets shall be located so as to produce as far as possible unifor~~.. circularion op ~•rater t~~roughout the pool tritizout the axis fence of dead spots, (1) E`. ininii_ZUr~~ of t.•r0 (2) inlets shall be required for pools having a periphery up to 120 lineal fee-c, ~~~ ovided that an inlet shall be required for each additional sorry (~-0)llineal feet or fraction t~lereof. ti~There automatic skimmers ails slcirair~er-:filter units are used, inlets shall b~ installec'. so as to direct the flow of tirater in a hori- zontal plane to the sltiiir~i,~ing device inlet, ~i'he r<<inirsum discharge depth of pool inlets shall be 10 inches Belo r the pool operating level. ;:hen irregular shapes are incorporated in-co pools, additional inlets sb.all be installed as stipulated above., Ordinance T~?o. B¢13 Ca~~t:ix~ued (J_~) (2) Suitable facilities i'or adding make-up ~~Tater as needed sTaall be provided. Then. e si~zall be no pLlysical connection between the t.Tater supply line and the pool sgTstem. .if the rrake-up water is added directly to the pooa_, the fill spot shall be at least six (6) inches above the upper rim of the pool. If the mal.e- up grater line discharges to a surge or balal~ci.ng tank, the point of discharge shall be at least six (6} inches above the rim of the tank. If a hose connection from a sil.~t coca ar other plumbing fixture is to be used for supplying mails-up i,Tater, then an approved vacuurA~ breaker shall 'ue installed between. the sill cock or control valve at the fixture and the hose connection. ~~ny sill cock used for this ser- vice shall be located above ground level. No over the rim fill spout will be accepted unless located under a diving board or installed in a manner approved by local authorities so as to remove any hazard. (3) The systems supplying recirculated water and make-up water to the pool shall be constructed in conformance with the village plumbing code. .0833. Main Outlets. 1 1 (1) The main outlets, for purposes of recirculation and emptying the pool, shall be so located as to provide at least one outlet at tT1e des est point in the pool if the pool ~?idth does not exceed twenty (20~ feet. If the pool ~ridth is more than twenty (20) feet, multiple outlets shall be provided and spaced not more than twenty (20} feet apart, nor more than. ten (10) feet from walls. E~11 main outlets shall be equipped with gratings having an area of openings not less than four (~) times the cross-sectional area of the outlet pipe. The gratings shall be of such design so that they cannot be readily removable by bathers and will not injure bathers' fingers. (2} r'ools shall be equipped emptying the pool and other drainage and the discharge of the pool grater suitable disposal unit acceptable to a rate not exceeding X50 gallons per shall be made to the sewer. c~Tith facilities for comapletely by gravity if elevations permit' to the sanitary sever, or other. the FTealth Of-4 icer, shall be at minute. T*To direct connection The outlet fro~a the pool recirculation systems shall termin- ate at least six (6) inches above the receptacle connected to the seti~=er. The drainage systerr~ shall be constructed in conforr~?ance c~ith the provisions of the village plumbing codes and Under the super- vision of a licensed plumber. eater drained, etc. Section 9. Heaters. Gas fired s~Jir~ming pool heaters and swimming pool boilers sha11 bear the t~merican Gas :association seal of approval. Oil burning equipment shall bear the Underwriters seal of approval. Section 10. tdater jupply. i'Jater supplies serving all swimming pools shall be of a safe sanitary c_uality or othertirise acceptable to the a-iealth Officer. The installation of the pool i;Tater supply piping and connection to the source of tT~e su,~ply shall be under the super- vision of a licensed plumber. y Ordinance iio® ?.,13 Continues; (1:3) Section 11. Tests. fill pool piping and the installation and construction off' ti'1e pool piping syster:~ small be in accordance frith the approved plans, The entire paol piping system shall be tested caitll an air test o~ fifty (50) ~ ,S, I, and proved tight before cover- ing or concealing. Section 12. Chemical Treatment and Yool :later Quality. The pool o~-aner and operators shall ',~e instructed in the proper care and maintenance of the pool, including the use of high test bypochlorite (liciuid chlorine) or an ec~uall~T e~~:ective gerr~?icide and algaecide' and the importance of proper pal (al.l~.alinity and acidity) control. Gaseous chlorination syster:is shall not be used as a disinfection re-..etl~od for pool water :~ or residential s`•riti°.~.?ing pools . Residential swimming pools should and public anal sef.~i-public pools s11a11 meet the following sta~?dards. (1) Free Chlorine. ~~'ne free chlorine content shall be r~~aintained betti~aeen five-tenths (0,5) and one (1.0) parts per million. (high-free residual chlorine may be used. ) (2) alkalinity. The psi level of betta7een seven. and one-tenth (7,1) and seven and eight-tenths (7,8). (a higher pH is permitted if high-free residual chlorination is used.) (3) Bacteriological _uality, ~-i sar~~ple of s`aimming pool ~~rater shall be considered satisfactory Then the total bacteria count; at 35® centigrade does not exceed 200 colonies per milliliter and no organism of the B. Coli group are present in a 10 milliliter portion or 100 milliliter portion as deter~e.ined by the membrane filter .~ethod, If riF.ore than one such sample oLrt of seven collected on different elates is unsatisfactory, the bacterial cuality of the pool t>>ater ~~ril7_ be con- sidered unsatisfactory. i~rocec?ores and interpretations relating to bac;Teriological duality shall be done in accordance ~Tith the Standard i,ethoc?s for the ~xar~lination of Tlater' Sewage and Industrial ';tastes, ,, . 11th edition (1960). Section 13. Indicator I;it. .gin indicator kit capable of measuring free chlorine residuals in sctiTimming pool water ranging from one-tenth (0.1) to one (1,0) part per rtlillion shall be provided. _'~n indicator l,it capable of measuring the degree of alkalinity (pH) of the pool ~•Tater ranging from six and eight-tenths (6.8) to eight (8,0) shall be provided. :there high-free residual cl~ilorin2tion is used, kits capable of r7easurin~ higher values shall be provided. Section 14. Safety =<ope and gar=chors. ~`~ saf ety rope and anchors shall be provided at the Tiiater 1~nel~~hen the designed pool operating z~rater level is foLar anc'_ one-half (~-2 J feet or less. Section 15. ilectrical _Ze~uirernents (1) ~`~11 electrical ir~_stallations pro~Tided nor, installed and used in conjunction ti~ith residential stJi~:r._~ing iaools, shall be in confori~,ance ~•:ith t11e village code. Ordinance I<To. 2,1;5 C~ox1~,~in~~ect (1~~-f (2) l~o cur,~ent; c{.z°rX, _izz~>, c_~ f.F ctr=i es idei~t ial s~,Tirr~;,:iilg pools , o~:r e:~ ~f.e a~,. or within fifteen (15) feet of uch 13ools, (15) foot sey~aration shall nog, al~pl~T to accessories. ea.l concuct~~~s shall cros s be :Lnstalled underground ;pro-video Mat t~ze fifteen -;ir=" to pool lighting or (~) -"sll n_etal fences, enclosur~/s, or mailings near or ad- jacent to residential s[~Ti~:.:in~ pools, ~~~ilich r,~ib~1t becoz~,e elec%rically alive as a rest?1t of contact ~"~it'~z '~rol>cn overizead coz~cluctors, or from 2.ny other cause, s~all ~~e effectively grounded. Section l6. Operation and Alainten_ance. ldo residential s~;~irn- ming pool shall be us ec1., kept,` fc~aintained of ~ope-rated in the village, if such use, :peeping, maizltaining or operating shall be the occasion of any nuisance or shall be dangerous to life or detria~iental to health. Section 1?. Inspection. The :~ealt~~ ~:~fficer small Dave author- ity to inspect any r°°sidential swir~~~icing pool at any reasonable time during construction or thereafter to c~eter~°-.ine t•Tl3etl~er or not the provisions of this code regarding health, san~.tation, o~~eration a.nd safety apl'.licable t~ler.to axe being cor.~plied ~•;ith. T_Ze Inspection Division shall have authority to enter upon any prer~.ises as it zr~ay be deer~~ed necessary to inspect z•TOrL clone and installations made under permits issued by the Inspection -ivision. Section 1S. Shielding Lights. bights used too illuminate any swimming pool shall be so arra nged a.nd shaded as to reflect light away from adjoining premises. Section 19. Location. loo portion of a swiml~ing pool or appurtenances there to shall be located at a dista.z~ce less than ten (10) feet from any side or rea r property line, nor in front of the building line. Section 20. Iiences. ~~11 swiz~?miz~g pools shall be co~~~pletely enclosed by anon-climbing type _fence. ill fence openings or paints of entry into the pool area enclosure shall be er3uipped ~•rith gates. The fence and gates s'~all be at leas~% four (~) feet in height and shall be constructed of a minirriur~~ number eleven {11) gauge ~,roven wire mesh corrosion-resistant material, or oti~er materials approved by the Inspection ~1V1S10I1e !~11 gates sF~.all be ecjuipped ~•:ith sel#'-closing and self-latching devices placed at the tap of the gate or other rise inaccessible to small children . _,11 f e-ice posts s~lall be decay or corrosion-resistant a.nd shall be set in concrete bases, or other suit- able protection. Tl-ze maximum opening between. the bottom of the fence and the ground or related surface sial~_ be fozlr (4) inches in tl~e verticle plane. Section 21. Safety precautions. (1) A s~Lilled swir:rner shall be present at all tir,~es that residential s~ri~:r,sing pools are iz~ uuse. (2) revery residential s`tiTi~~s,ing pool. s'~a11 be enuipped T~ith one or more t~~ro~tiing ring buoys ilot r: ore than f i=i teen (15) inches in Ordinance 1'do. 2.13 Coi2tin=zed. (I.5) diarleter anc: having sixty (60) :e eet of 3/16 inch i•,anila line attached, and one or more light but strong poles with blunted ends and not less than tti~elve (12) feet in length for mal~ing reach assist or rescues. (3) Diving board height above the pool ti~ater level shall be in accordance with Table i, Section 7 (9). €he Health Officer may authorize greater diving board heir;hts when it is shown that such increased height shall provide an equally safe diving board height- maximum pool depth ration, Section 22. Other Design and Equipment. Kny swimming pool, the design and equipment of t.Th ich incorporate features-other than those set forth herein shall be sub,~ect to review and approval by the rIealth Officer in acccrdance T~7ith acceptable standards and in conformance with current public health and safety practices. Section 23. Public or Semi-Public Swinunin~ Pools. Swimming pools, other than residential pools shall be ~constructed~an~d operated in conformance with standards for such installations promulgated under l~iinnesota State E~oard of ~~ealth, _~egulation dumber 2~5. In addition, the person, firm, corporation or agency proposing the construction of a swimming pool as provided under this section shall file with the ~iealth Officer, prior to the beginning of any construction, two copies of the report prepared and issued ~y the i•zinnesota State Department of health showing approval of the plans, and two sets of plans upon which such approval is indicated by stamp, seal, or other official mari,ing oi° that agency. The Health Officer, upon having had an opportunity to review the material furnished by the builder as provided herein, shall, upon approval, so advise the Inspection i~ivision and furnish said Division one set of plans approved by the A~innesota State Department of Health. The remaining set of plans shall be retained in the files of the Health :department. further, the i~ealth Officer and Inspection Division shall have authority to enter upon any prea~Gises for the purpose of conducting pre-construction surveys, irate rn:ediate construction investi- gations, operational investigations and upon such ogler occasions as may be deemed necessary to determine that the facilities are constructed in accordance t:7ith approved plans, and n.aintai=_~ed aiZd operated in accordance with State Department of Heallth Standards. Section 24. Penalties. ~zny person violating any o~° the pro- visions of this ordinance shall bQ deemed guilty of a misdeameanor and upon conviction thereof shall be fined in an arslount not exceeding Oiae Hundred Dollars (100.00), or be imprisoned for a period not exceeding ninety (90) days. ~ ,, Passed by the Village Council of the ijillage of 1'~ichfield this 22nd day of i~4ay, 1951. ~_ k i TJST ~- I Clerk & GRADE A STATE OF MINNESOTA COUNTY OF HEI~INEPIN, ss i ~ r Robert A. Broad, L. R. Farrington, Guy T. Farrington, being duly R l' sworn, on oath says; that he is, and during all the times hexein stated has been, one of the publishers of the newspaper known as The Richfield News, and has full knowledge of the facts hereinafter. stated; that for more than one year prior to the publication therein wil~ili~ i?ool Or°dirlaL~ce iuo. 2.13 of theLe-ga•~ --I~Ot 1CC-5•-••-°---.......--a .............-----•----........._..-----•---•--.......... GOVT. INSPECTED & DRADED A hereto attached, said newspaper was published in the Village of Rich- . field, m the County of Hennepin, State of Minnesota, on Thursday of each week; that during all said time said newspaper has been printed in the English language from its office of publication ~~ithin the Vil- lage of Richfield, Hennepin County, iVTinnesota, from which it is issued '~ as above stated and in newspaper format and in column and sheet form equivalent in space to at least 450 running inches of single col- ~ umn, two inches wide; has been issued as aforesaid once each week from a known office established in said place of publication and em- ~ ploying skilled workmen and the necessary material for preparin THE PIECE and printing the same; that the press. work an that part of the newsg paper devoted to local news of interest to the community it purports ' to serve has been done in its known office of publication; that during ` all said time in its makeu not less than twent five ~ p y- ' percent of its ,u D ~ news columns have been devoted tv local news of interest to the com- ~ munity it purports to serve; that during all said time it has not ,, wholly duplicated any other publication, and has not been entirely i made up of patents, plate matter and advertisements; has been cir- ' ~ culated in and near its said place of publication to the extent of at ~ ~ L least two hundred and forty (240) copies regularly delivered to pay- ~ - - _ _ _ r _ ding subscribers and has entry as second class matter in its local post- _ _ ~. ~ ~ _ office; that a copy of each issue has been filed with the State Histori- cal Satiety, St. Paul; and that there has been on file in the officer of thF County Auditor of Hennepin County, Minnesota, the affidavit of a per- i json having knowledge of the facts, showing the name and location of said news a er and the existence of the conditions constitutin its TO pp g qualifications as a legal newspaper. o Legal ~~o~{Y- ~.ce-. , . ,~ That the ....1~5~.~..QiC11.;~.C1~.--.l~..Q.~?.X..._GI'~1.a..Xli~.~i.k.4._~~~---~-~--~-3---------.. f hereto attached was cut from the columns of said newspaper, and was ;gE ^ ~ printed and published therein in the English language, once each :r~UNKIST, VALENCIA o~ e~ 2: ES week, for ...-.One successive weeks; that it was first so published on Thursday, the -..-..---~-~-t-------•------------ day of .---•-- ~-Li.-i12-----••----------. 1961; and thereafter on Thursday of each week to and including the ....................•-----------•----.......- day af ------------------.....-------------••------ 1961; and that the following is a printed copy of the lower case alphabet from A to Z, ,both inclusive, and is hereby acknowledged as being the size and kind of type used in the composition and publication of said notice, to-wit: subscribed abcd- hijklmnopgrstuvwxyz abcdefg ij~kl nopgrstuvwxyz and swam to before me the .2rla..... day of ~7urle 1961. -~ Notary Public Hennepin County, Minn. - -SIZE "A" ---.:~........ ` S. N0. ~ My Commission expires -.._.......-•---•------•• -----------•----=--=----------------... 19...-.-.... 1 E J pon~VORITE REVERA~E ~4" .. e 6 Y ^~?: i.Efi:1i. \OTIOI7 .. Oitl')iNAItiCN: No. 1;{ V ORDINAN'CT7 R.EG'DL1~1NCa 7`ITF. CO NS'[`ILt7CTiON, OPir7R.1- lON 1ND 711AInT1•NANOE OF vNLM11y11NG POO1.5: PItESClialt- iG STANDARDS ANi) REQ,i?l. ~flt.N'IS FOR lain CONSTIi.i~C- ION, OPD:RATION .~1ND NIAiN'lI ANUF: OF` Sf.'Vl)1MING POOLE \D SWIS[hiING POOL F:QIT1P~IbaYT AND :11'1.tRATCS: PIiE- `IITRINCR Dti'I`IP.S .4ND Rb:SPONSIIIILITl17S OF T1iI HEAi,TH F'F1CER ADD iNRPI+'.C'I`ION DIVISION: aNi) PR[:5('~iLIiSI'.~G G;NALT76:5 FOit TIIF VIO).ATLON OF ITC PItOViSlbNh. VII,LAGF. COUNCIL OF 1'F1F, ~%[LI 4C F. Oh RIh:1iFIPL;I) ORDAINS TT,I,O W S •etion, 1. Short Title. This ordinance shall be, known and may be ~s the "Swimming Fool Ordinance for Ch,e \'ill xge of Richfield.' ~etien Y.. Detinfitions. For the purpose of,~this ordinance, the 'follow- rins phrases, words, and their derivations shall have the meaning herein. tiVhen not inconsistent with the context, words used present tense include the Enters, words in tits plural nuntiber e ~e singular number a,nd words in the singular number include in;:'the plural •nunt~ber. The ward "shall" as used heroin is manda- ted not erely. directory. :'"IIF, FlCF13" is the Health Officer of the Village of ',his authorized scene ~•a• i OOL" is itny cop ~ nl, '~ised for swimming ` erger twenty-f.otir' rhos in depth, or with ea~~' exceo- dmg 15q='," fee "R SR'IiV(_VLLNC._~,?b0 ~ s at' • tstructed on =hi ~• p 1 w ch is 9 '~~. 21 e led o t b . e u ed"'as'. w-imr ' a~ flip T O t .S , 1, p c 1 in con- nect' a single fami)y+ residence, anti available only to the 1'ltitt the htitisehold.st` a.nd his private. „nests. , "P(1BLIC •fF SEMI-I'irBLId SW111:11fiN(, l'OOI~' is any stvimmin~ pool other than a Private swimming pool. 'MAIN OUTI I T' is the outlets) at thc> deep portion of the pool through which the main flow of water leaves the pool when beta • dtn,ined or being recirculated. ",VfA1N SUCTION" is the line connecting' the main oxrtlet to the pump suction 'VAC`,irTiy[ 1~'L1`TING" is the fitting in the wall of the pool Which t9 used as a convenient outlet for ccnnectin~ the underwater qutaion cleamn,g equipment. VA,EUIThI PIPING'' is the piping thich connects the vacuum fitting to the pump suction, iffi ; RI:TIFRN PIPING" is the piping whrc~ carries the filtered water from the filter to the pool "INLET" is the fitting or opining th r which filtered water Enters the pool. , FACE PIPIN(^' is the piping• with all` and fittings which is used to connect the filter system toe r'ttis a unit. 'RECIRCULATING PIPING" is 'the pi the pool to the filter and retut•n to the pool, thxqugh w ~' t water circulates. BACK;VA/;FI PIPING' is .the 1 in p P a• +extencls from th . ~~~ e ". b3a..~~k~w ah outlet. of the fit t,o. rte, terminus at the point of 'di'spose c , °~. is a material or t~:by which water is clarified. AIN' is an appur nce'itt thebottom of the filter to. I~~C~al distribution of ~ater tttrpugh the filter me ' }, Ifi'4rT:fi:~Ti;NT" is thF dta. -.,~~ eM ...~a;,. 158rt~ of a filter device which retains u1.ATION SIiIMbIER"r is a: device connected with purr xsed to skim, the pool over a self-adjusting weir ar re water to the pool through the filter. MI'.1-71I:A" is the fine material which entraps the su; articles. SAND" is a type of filter media. ROCK" is graded rock anct gravel used to support filtt t+•1LTF,R AID" is a diatomite type of filter media. "DIATOMITE TYPE FILT ER" is :r filter designed to be use with filter aid• "DIATOMITE," (Diatomaceous Earth) is a• type of filter aid. `$h:ZMMF,R-FILTER" is a recirculatin;; skimmer with a Elite forming an integral part of the; device. hII,TE$ SEPTUM" is that part of the filter element in a diatc mite-type Filter, upon which a cake of diatomite is deposited. 'PRF3COAT" is in a diatomite-type filter the initial coating c filter a:id placed on the filter septum at the start of the filtc cycle. '"•BODY FEED" fs filter'~la.id fed into a diatomite-type Elite throughout the filtering cycle. `I`I,~'ItF]R CARTRIDGE.." is a disposable filter element whit empo s'no Yilte# aid. ~• "C° DGE FILTER" is a filter u~~f1tg,,_1'ilter cartrtd *es• RATE" is the average story rate over tl,~ filtratio cy' ~: • ,., S" is the lisle 3lveen the floor of the pot art a m.oper~•ttins le en pool is in use. P ''is the f4`itished ounct the pool. "WI `,ATVD,° LEIVGTIi" shall $eterrnined by actual. watE dime r.~ ~rxvcttlOHS" are the rings at #ransition point. T'R 2UN POINT" is the point~e•tween shallow and deep are: ":POO ALL" is that portion the pool that is vertical o inclined more than 45° to the vertical from the horizontal. K. "POOL :FLOOR" is that portion of the pool that is horizont: or inclined ices than 45° to the vertical from the horizontal. etion 3. Approval by health Officer: Construction Permits. .Befar is .commenced nn the construction oL a swimming pool, or an `ion. addition, remodeling or other finprovement to a swimmin three (R) .sets of identical plans and specifications and pertinen story data shall be submitted to the health. Officer for approve 'e to .design, operation and ,,npaintetiance insirfar as health an features e concerned in a ante with the standards prescribe 9, ordinanc~, as evidenced by° •, able endorsement upon such lap tgeific t• x}s. Approval b ~ p Y th~ $l. ,h,. Officer shall not pertain t aural Atability. Tice fY, 'flab. Division shall not ass wimnimg oo .u p 1 lafit .. ~•. hue etYtdnr.coA t...'kw ., nd specifications there ~,~~ to the Inspe£tiot) ~ a permit to construe of or to construct ~St~'a •gd.dition, remodeling• o ez6t~to a swimming~pl:ghA ubmitte.d in such form, ported' w{th such info atioh ,~ ta, as well as s and pertinent explanatof'y data, as promulgated hereunder ' 4. Plans to be Submitted tau; tike ;Health ,Officer :ual Inapectlot ~rt;~. lens,' specifications`)ritd p<.x"tfnGYrt~ espla,nattiry. data requires submitted in.connection with, an application fora pex•mit to con a °swimmlrtg pool or any alteration, addition, remodeling or other •ement-.to .a swimming pool shall comply with the following t•e snits-'and 'include the following plans and information as wel t other .data. as may be reasonably requested by the, Health Officer spection Division. Plans shall show, but not be limited to the general layout entire, building lot on which the, pool is to be located, dis~ of the pool from the lot lines, .water; supply systems, buries and rsewa:ge disposal systems, utilities (electric, gas, tele• etc) or other sources of. contamination within fifty (60) feel pool and : be drawn to a scale of not smaller than one-fourtl. ch = one:' (1) foot .thus indicating all dimensions, including the e length, width,. depth, and width of the poo) deck and r tetns,i Cross-Sectioita,l views of file pool: A cross section of scum gutters and/or skimmers: Pipe diagrams showing material and size of all pipes, inlets, make-up water lines,. vacuum lines, waste and discharge lines, iori and other piping: The pool: equipment layout, showing' filters, their .location, chlorinators, chemical feeders, flow meter gauges, sight gl•xss, e, •ha:ir .acrd lint interceptors, if one is proposed 'the dimensions ;r roorit, ,its 'location, floor drain, sumps and other pertinent .lion: The liquid capacity of the pool: The :kind, number and size of filters, including the square of the fi'iter• area in each unit: Rated capacity of the filter in gallons per minute: A description of chemical .feeders for soda ash and alum, if used: I The type, kind and description of chlorinator: 1 The' type and range of testing equipment, including chlorine: i Source of. water supply. flop .:. Construction in Accordntpee with Approved Plans, All ng pools, appurtenances, water supply aril drainage. system and eatures• shall be constructed in conformity with the approved f any deviations from such plans are d.ESired, a supplementary vexing that .portion of the work involved shall be filed for I and shall conform to the provisions of` this Ordinance. •ion ,0. Permit Fees. The fee for a permit for the erection or ~tsquaref'feet f su face aplealandaoneb(1) dollar for eaeH additional eras feet or fraction thereof as determined by the plans and ttfons;submitted with the application for permit. ion ?. Gonstraiction. The design and construction, as well as oment and materials, shall comply with requirements herein. Stnretaral Design. The pool structure shall be engineered and t Lo withstand. the expected forces to which it will be subjected. Its of 'a pool incorporating a plastic liner shall be of. masonry lion and the bottom must be supported by fine sand at least inches in depth, Wall Dewiffrn_ m., „ a,....._ ___ Ordinance (2) L`ilter capacity shall he such that it need not be .cleaned more frequently than once every four (4) days under proper conditions of watet• and operation. (3) :~11 pressure filters shall be equipped with influent and affluent pressure '<tug~es to determine the pressure ditferent.ial and frequency of cleaning. .411 other filters shall be equipped with at least one pressure, vacuum or compound r.ug'e, as ~ applu;able. which shall be positioned in such a way as to det.ertnine the_ differential zicross the falter and the need of cleaning. (4) Ali pressure filter systems shall be equipped with an air release ai. the high point in the systeut. (~,) Operating th,tructtons shall. lte posted. on every filter system. A11~ valves shall be properly designated, indicating' their purpose. (G) Ati'here dissimilar xnet:als are used fn the construction of lire filter, which ma.y set up galvanic• currents, tPteti suitableprovision shall be made to resist electrolytic c!orrosiou. (i) 1?ilter•s shall be so designed and in~•,talled that they can be t•eadily disassemblE'~d a.ncl the filter elements removed. .05±11. Prexxare F'7lterc. Pressure filter systems utilizing sand or other equally effective filter media acceptable to the health Officex• shall be da..signed and installed to operate at 'a rate .not to exceed thtr:e (,) ,~ailons per minute, per square foot of filter, area and to btclcwa~h •~yt a minimum rate of twelve (l2) gallons per minute, per square fool of surFa.ce area. (1) h`iltc;r tunics stall be fabricated to meet the 195F1 ASi14:E C~pecificat,ions for non-code pressure vessels, with the exception that sta•udard type dichefl and flanged heads may be used. Tana shall be built Por c minimum of fifty (:i0) pounds workin;~ pressure and tested at 1:i0 Psi. The filter underdrain shall have :rn el'feetive distribution oC •rt least twenty-five (G5) percent of the r•ross sectional area of the tank. Tanks shall not be placed underground. (2) Filter tanks shall be, supported in a manner to prevent tipping or settling. 081.;,'. Filter Media Specifications for Sand Filters. •(1) The principle filter media shall be as a minimum, a hard, uniformly graded silica, material with. effective particle sizes, between 0.4:i and 0.5:; millimeters in diameter, with uniformity co-efficient of 1.i5. There shall' be no limestone, clay or deleteriqus matter present. (2) The principle media shall be no less than twenty (20) inc}ies in depth with a freeboard of no less than twelve (]2) inches. (3) There shall be no less than four (4) grades of rock, wIiicl} Shall be clean, non-crushed, rounded, non-.porous, non-calcareous ma- terial. (4) The total depth of the rock supporting bed shall be no' less th~au sixteen (16) inches and each <•rade shall be two (2) inches or ,greater in depth. Each layer of noel: shall be leveled to px•event intermixing of adjacent grades. inch and(onerqua ter (~) inchrlThe next layer sl all vary inesrzehb tweed one-.quarter (i/) inch and one-half (t~Z) inch. The newt lay~rshall vary ix: size betti•eon one-half (?z) inch and three-quarters (~?~) inch. The bottom layer shall vary in size beriveen one (1) inch and one and one- half (lr/z) inches. (¢) Other filter media and related filter and backwash rates may be used subject. to approval by the Health Officer. (7) Patented under drain systems may be, used provided that tl;ey shall dive results which are equal to or better than that above. 1)81.;1, D(atomite Type Filterx, (1) Diatomite type filters shall be designed for operation uhder pressure or vacuum. The design capacity shall no't exceed two (2) gem per sduare foot of effective filter area. ('.'.) The- determ;inatfon of the filter area shall be made on ~ basis of a true and effective supported septtun surface. In the case of fabric aeptums, the area computation will be leads on the basis of measurements of the septum support in a reasonable constant plane. Area allowance shall not be mranted for folds in the septum fabric or deviations in the septum surface which would easily bridge. (3) The tank containing the filter elements shall be constructed of steep, plastic or other suitable material, which will satisfactorily .provide resistance to cm•rosion, with or without coating. Pressure filters shall be designed fora working pressure equal to the shut-off head of the pump, with a safety factor of four (4). Vacuum filters Shall be designed to withstand the pressure developed kiy the weight of the water, contained therein and closed vacuum filters shall, fn addition, be designed tp withstand the crushing pressure developed under a vacuum of twenty-five (25) inches of mercury, both with a safety factor of 3.5. , In either type filter where the tank is fabricated from material which is corroded by water, then a suitable corrosion resistant coating shall be applied to retard such attack. (4) The filter elements shall be fabricated of cotrosion resistant materials throughout. They shall be designed to be adequately resistant to a -differential pressure between influent and effluent of not less than the maximum pressure, which can be developed by the circulating pump and shall be of. adequate strength' t:o resist any additional stresses developed during the cleaning operation. The filter septum, op which the filter-aid cake is deposited, shall be provided with openings, the minimum dimensions of which shall be not greater than 0.005 inches. (5) Provisions shall b.; made to introduce filter aid into the filter ih such a way as to er-enly precoat the filter septum before the filter is placed in operation. The amount of filter aid shall be selected to provide at least the same protection to the filter septum as would be provided by the use of 0.1 lbs. of filter aid per square foot of fhter area per twenty-four (24) hours. Use of additional equipment to provide body feed to the filter influent is optional. Where provided, such equipment shall have the capacity to' continuously and uniformly fend at a rate of not less than 0,1 lbs. of filter aid pex• square foot of filter area per twenty-four (24) hours. (6) The filter piping shall be so designed that during the pre- coating operation, the effluent from the filter shall be re-circulated or run to waste and shall not be fed into the pool uattii free of filter aid. An exception to this requirement may be made if the filter septum is of such constrnetion that no perceptible duantity of filter aid fs Introduced into the pool when the effluent discharges therein: 05+14. Cartridge Type Ii`ilterx. (;;rrtridge type filters are those where the cart) tdge itself is the filter aid. Cartridge filters may be either pressure or vacuum type and •tre subject to the same <'eneral pip- ing and tank specifications as diatoiite-type filters. Replacement cartridges are divided i~tto t.wo types; depth and area. General specifi- •ttions, however, are the same for both: Gartridgf; filters shall not require Che addition of any flocculating, agents such as ammonium alum, allu- rttinum sulfate or potassium alum. They shall be subject to the same requirements listed under Secticsn OOO:Of+l for all types of filters. All types of cartridges shall have .sufficient styructural strength to resist -upturing, channeling, collapsing ~o~, bursttttg, at a maximum pressure 3ifferenttals oii~G psi. cart. rdp.~e eti13 shall be. so designed as to preveiit my by-passing;. of unfiltered water:: If provisions is made tot back-washing, it shall be so arranged is to not permit shy backwash water to enter the recirculating system. Qo residue. shall be permitted to remain in the filter-housing that :cold be picked up in the next filtering cycle. OSi4l. Cartridg'c Elementx Shall be llivided in Two Types: (1~) Depth .type cartridges are elements where the porosity caries from .the inlet to the discharge surface. They shall have suf- icfent depth tp.provtde adequate dirt-holding capacity and be designed or a flow of no more than one (1) gallon per. minute per five (5) cubic. aches of volume with a pressure drop .not to' .exceed two (2) psi across Iea?r cartridges and not to pass any. particulate matter larger than; w•enty-five (25) microns. - ' °{2) Area. or surface type cartridges are those which rely on he surface area for `their dirt-holding capacity and. they should follow he same Plow' per square foot of area as diatomite filters, namely: hree (3) gallons per nt;inute per square foot of filter. area for vacuum. alters. 08142. Additional Standards for. ('artridge 'eyes 'Filters (1) b`ilters shall be capable of filtering entire contents in tvelve (12) hours or less. (2) Filter capacity shall be such that it-need not be cleaned tore frequently than once every four (4) days under proper conditions. f water •tnd operation: ` (3) All filters Shall be designed so as to permit easy removing f the cartridges. .08l: Recirculation Pumps,, The recirculating pomp shall have ufiicieni capacity to provide the rated flown of the filter system, without xceeding the head loss at which the pump will deliver such flows. The ump motor shall itot be operated at an overload which exceeds the rvice factor. Y7) P.ool pump shall lte equipped on the inlet side with an pproved type hair and lint interceptor. The basket of the interceptor hall be non-corrosive and have an open screen surface of at least ntr',(4) times the cross sectional area o) the inlet pipe. (`L) When the filtering and pumping equipment is installed Bove ground at a level below the overflow level of the pool as may be aerated by the contour of the plot on which the pool is constructed, -a else shall be installed on the main suction line located in an accessible lace outside of the walls of the Wool. .08:3, Pool Pipini;. The pool piping shall be sized to permit the fled flows for filtering and cleaning without exceeding the maximum gad, at which the pump will provide such .flows. In <*eneral, the water levity in the pool piping should not exceed more than ten (10) feet :r second: Where velocity is to exceed ten (10) feet per second sutn- ary calculations shall be provided, to show that rated flows are issible with the pump and piping provided: The recirculating piping ul fittings shall meet the following requirements: (1) Where vacuum fitting(s) is/are provided, it/they shall be Gated in an accessible position(s) below the water tinr_ utstalrea to a manner approved by local authorities so any hazard. (R) The systems supplying recirculated water water to the pool shall he constructed in conformance t; Dluml.ting code. 'h4:i3. Slain Outlets. (1) The main outlets, for purposes of recirculatfol the Pool, shall be so located as to provide at least on. deepest point in the pool if the pool width BOPS not exec feet. lf: the pool width is more than twenty (20) Peet, r shall be provided and spaced not more than twenty (20) more than ten 110) feet from walls. All main outlets sh: with gratings havin~~ an area of openings not less than the t.ross-sectional area of the outlet pipe. Thc, gratings s design so that they cannot be readily removable by bathe injure bathers' fingers. (2) Pools shall be edufpped wrfth facilities for c tYtn~ the pool and other drainage by gravity .if elevatic the discharge of the pool water to the sanitary sewer, o~. dispgsal unit acceptable to the Health Officer, shall be exceeding '250 gallons per minute. No direct connection to the se'wett The. outlet from the pool recirculation systems ii,i; lc. rat six. (G) inches above the receptacle ecinnected to dtatnrge. system shall be constructed in conformance will of tktc~ village plumbing erodes and under the supervisio: plumber. Writer drained, eta Sce.tion cJ. Hcaterx. Gas fired swimming pool heaters Pogl boilers shall bear the American Gas Association se Oil burning equipment shall bear the Underwriters seal c Se•etiun 10. Dater Supply. Water supplies serving all shstll be of a safe sanitary quality or otherwise acceptabl Ofi'icer: The installation of the pool water supply piping to .the, source of the suPhly shall be under the supervisic plumber. Section 11. Tests. All pool piping and the installatiot lion of the pool piping system shall be in accordance w.il pl to .-The entire pool ptpm ~• system shall kie tested tvitl fifty (50) P.S.I. and proved tight before covering or cos Section 12, .Chemical Treatment and Pool Water Qu ow nex• and operators shall be instru^ted in the proper tenance of the pool, including the use of high test hype chlorine) or an equally effective germicide and algaeci~ port<t,nce of proper pH (alkalinity and acidity) control: ination systems shall not be used as a disinfection m water for residential swimming pools. Res(dential swimmi and public and semi-public pools shall meet the followin (1) Free Chlorine: The free chlorine content shat between five-tenths (0.5) and 'one (1.0) parts per mill residua! chlorine ma.y be used.) ((2) .alkalinity. The pII bevel of between seven (i.l) anc~ seven and eight-tenths (7.8). (A higher pFI high-free residual chloriita,tion is used.) (3) B:-eterioloy;ical (Zunlity. A sample of swiritm shall be considered satisfactory. when the total bacteri centigrade does not exceed 200 colonies per milliliter ar of. the B. bola group 'are present. Ina 10 milliliter portion portion as determined by the membrane filter method. If such sample out of segnn collected on different dates is the bacterial quality of the pool water will be considered Procedures and interpretations relaxing to bacteriologic: be done in accordance w*ith the Standard Methods for t] of K%ater .Sewage and Industrial Wastes, 11th edition (1' Section 13. Indicator Kit: An indicator kit capable free chlorine residuals in swimming pool water ranging (Q1) to one (1.0) part per million shall be provided. An indicator kit capable of measuring the degref ( H) of the pool water ranging from six and eight-tenth (5.0) shall be provided. ZVhere high-free residual chlori kits capable of me, surfing higher values shall be provide. Section 14. Sn4etp ]tope and Anchors. A. sY2fetY i•oI shall be provided at she water line when the designed water level is four and one-half (4~z) feet or less• Section lv. Electrical Requirements. (1) All electrical installations provided for; insl in conjunction with residential swimming pools, shall be with the village code. (2) No current carrying electrical conductors s1 dential swimming pools, overhead .or be installed upae~ fifteen (15) feet of such pools, provided that the fie separation shall not apply to wiring to pool lighting qr a (3) All metal fences, enclosures, or railings near residential swimming pools, which might become elects a result of,c'ontaet with broken overhead conductors, or: cause, stall be effectively .grounded., Section 16. Operation and Mni.ntennpee. No residers Pool shall be used, kept, maintained or operated in the use, keeping, maintaining or operating shall be the or nuisance or sh<till be dangerous to life or ,detrimental to } Section 17. Inspection. The Health Officer `shall hay in§pect any residential swimming pool at any reasonab construction or• thereafter to determine whether or not of this cgde regarding health, sanitation, operation and sa thereto are being complied with. The Inspection Davis authority to enter upon any premises as. it may be deems inspect .work done and installations made under permits Inspection Division. Section 18. Shielding Lirehts. Lights used to illuminate peel aha11 be so arranged and shaded as to reflect light ; joining premises, Section 1A, Location. No portion of a swimming poo aitces thereto shall be located at a distance less than ten any side or rear property line, nor in front of .the buildi Section 20. Fences.. All sw imming pools shall be comp by a non-climbing type fence. All fence openings or p into the pool area enclosure shall be equipped with and gates shall be at least four (4) feet in height and ,trotted of a minimum number eleven (11) gauge wov corrosion-resistant material, or other materials approve spection Division. Al] gates shall be equipped with self-<ilc latching devices placed at the top of the o-ate or otherwise small children. All fence posts shall be decay or corrosion shall be set in concrete Bases, or other suitable protection. opening between the bottom of the fence and the grot surface shall be four (4) inches in the verticae plane. Section 21. Safety Preauntions. (1,J A skilled swimmer rghall be present at .all ti, dential swimming. pools are iIt use, (2) Eve.'ry residential swimrniiig pool shall be equi or more throwing ring buoys not more than fiftPeti (lv) mOtet•aitd~havinr; sixty (60) feet of .3/16 inch Manila. line one or more light but strong poles with blunted ends and twelve (12) feet in length for making reach assist or reset (3) Diving beard height above the pool water ley accordance with Tablb I, Section 7 (9). The .Health Offic craze greater diving board heights when it is shown that ; height shall provide, au equally safe diving board height-I depth ration. Section 22. Other Design and Egpipment. Any swamp design and equipment of which incorporate features oth set forth herein shall be subject to .review and approval Officer in accordance with acceptable standards, and in coal current public health and safety practices. 9cetion 2R. Public or Semi-Public Swlnemin>;• pooh, Sw other .than residential pools shall be constructed 'and opera manes with standards fps such installations promulgated seta State Board of Health, Regulation Numiier 285. In person,. firm,: corporation or agency: pt•opos.ing the cons swimming pool as provided under this sectioii'shall file ~ci Officer, prior to .the, beginning of any construction, two report p,t•epared .and issued by .the. Minnesota State D I3ealth .showing approval of the .plans, and two sets of pies such approval is ihdfcated by' stamp, seal, or other off of that agency. The Health Officer, upon havinghad an opportunity; material furnished by the builder as ,provided herein, approval, so advise the Inspection Division and furnish one set of plans approved by the llihhesota State Departm, The remaining set of plans shall .be retained.in.the files Department. Further, the Healt$ Officer and Inspection 1 have authority to enter upon any premises for the purpose Are-construction surveys, intermediate construction investfp ational investigations and ..upon .such .other occasions as m: necessary to' determinethatthe~facilities are constructed ; with approved plans, and maintained and operated in ace State Department of Health Standards. Section 24. penalties. Any person violating any oP the this ordinance shall be deemed guilty of a misdemeanor a'. viction thereof shall be fined in an amount not exceeding Dollars ($100.00), or be imprisoned for a period not exec (90) days. Passed by the Village Council of the Village of Richfi day of May, 196E ATTEST> Clerk _ ----.. ,,, ...~,r,cutcn Vtticer (1) Plans shall show, but not be limited to the general layout of the entire. building lot on which the.. pool is to be located, dis- i tances of the' pool from the lot lines, .water supply systems, buried 'ewers and sewage disposal. systems, . utilities (electric, gas, tele- one, etc) or tither sources contaminatioxl within fifty (50) feet I the Pool and : be drawn tc a scale of not smaller than one-fourth ' inch = one? (]) foot ..thus indicating all dimensions, including the fective~ length, width, depth, and ti-idth of the pool deck and I nilar items: (2) Cross-Sectional views of the pool: (') Across section of scum gutters and/or skimmers: (4) Plp'e diagrams showing material and size oi' all pipes, inlets, tlets, make-up tivater lines,. vacuum lines, waste and discharge lines, rculation and other piping: (5) :The pool equipment layout, showm_; filters, their location,,) amps, chlorinators, <hemicrl feeders, f]rty meter ],sages, sight glass, trainers, hair .and lint interceptors, if one is proposed 'the dimensions f filter rootix, its 'location, floor' drain, sumps and other pertinent formation: + (5) The liquid capacity of the pool: I (7) The kind, number aril size of filters, including' the square ~ o,otage of the Yilter area in each unit: (S) Ratgd ca~p~acity of the filter in gallons per minute: `(9) A description of chemical feeders for soda ash and alum, if used: (10) The type, kind and description of chlorinator: (11) The type and range of testing equipment, including chlorine: ~ (1.2) Source of water supply. Section 3. Conatrnrtfon in Accordaipce with Approved Plaues. 1111 swimming pools, appurtenances, water supply and drainage system and other features shall be constructed in conformity with the approved plans, If any deviakions from such plans are desired, a supplementary plan covering; that .portion of the work involved shall be filed for a>,pproval and shall conform to the provisions of this Ordinance. Section ,0. Permit Nces. The fee for a permit for the erection or construction° of a swimming pool shall be Ten Dollars ($10.00) for each 500 sgtiax•e;feet of surface ax•ea and one (1) dollar for each additional l00 square feet or fraction thereof as determined by the plans and ,pecificatioxis rgubmitted with the application for permit. Section 7. honstrnetlon. The design and construction, as well as ' xll,_equipment and materials, shall comply with x•equiremen'ts herein. (1) Stn><etural Design. The pool structure shall be engineered and lesigned Uo withstand. the expected forces to which it will be subjected. 1'he walls of 'a pool incorporating a plastic liner shall be of masonry' construction and the bot*.om must be supported by fine sand at least ~i~ (6) inches in depth. (2) ~Vnll Design. To a depth up to three (&) feet from the water eve), the wall shall be vertical. No right angle pro3ection shall be permitted with exception of steps at shallow end. (3) Floor Slopes, The slope of. the floor on the shallow side of ransition point shall not exceed one (1) foot vertical to ten (10) feet orizontal. T}re transition point between shallow and deep water shall cur in a '?ri•at~r depth of at least five (5) feet, provided that this v be dour-a'nd one-half (4}~) feet if a safety Sine is erected at this t. The maximum slope where water is five (;;) feet or more in th shall not exceed one (1) foot vertically in each three (3) feet 'zontally, provided that the floor slope from the point of maximunx th to the deep end wall, a one (1) to one (1) ratio may be incorporated. (4) O~•erflow and Surface Drainage. The pool and surrounding area 11 be constructed and arranged in such a manner that no splash overflow water shall return to the pool, No surface or roof drainage all be permitted to enter the pool. (5) Finish and Cove. Pool floor and walls shall have a cleanable, I '.hits or si,lxrid~ar light-colored and impermeable surface. The pool floor I iall be skSd_..resistant. There • shall be . a minimum cove or rounded u•ner oP one (1) inch radius or more whichever the case may be at ~e junction of the pool floor and walls and other similar interior instruction. Where the water depth is less than five .(5) feet, the aximum radius of such cove shall be twelve (12) inches. (6) liandholdt+: Handholds shall be provided and consist of a bull- rsed coping not over two and one-half (2~) inches thick for the outer %o (2) inches or an equivalent approved handhold. The handhold shall ~t be more than xiine (9) inches above the normal water,. line and all extend anqund_ the entire,. periphery of the Pool. (?) Poel Deck,`Unobstriteted deck areas not less than forty-eight 8) inches wide shall be provided to extend- entirely around the pool. re deck area shall be constructed oi' impervious material, and the dace shall be of such as to be smooth and easily cleaned axed of n-slip construction: The deck shall have a pitch of at least one-fourth r) inch to the foot, designed'so as to prevent back drainage into the 01. If deck d sins are provided drain, pipe )9nes shall be at least two 1 inches im~iameter; drain openings shall have an open area of at' Est four (4) times the cross-sectional area of the drain pipe. The ~k drain system shall have indirect connection to the sanitary sewer, e deck drains'~shall not be connected to the recirculation system piping. (8) Steps or Ladders. Two or more means of egress in the form steps or ladders shall be provided for all private residential swim- ng pools. At least one such means of egress shall be located on a e of the pool at the deop end and one at the shallow end of the xl. Treads of steps and ladders shall be constructed of non-slip teriitl and 'shall be at least three (3) inches wide for their full gth. Ladders and step holes shall have a handrail on both sides: ,PS shall be Iocated only at the shallow end of a pool. (9) Diviug Area. D4inimum depths and area shall he as follows: '.Minimum Minimum Water DcPth Distance Distance Distance rilaximu,m Five Ft of Deep fm. Deep Minimum fm. Side. I>istance fng.Tip of Point fm. Point to Diving Wall to Above Diving Diving Transition Poard Center of :rds luster Poard .Nall Point .Overhang Board ;k Level 1S" S' 10' 10' 21/L' T ~rmediate 30" S' 11' i]' 2x(._>>' 7x,~' [stet 89.37" Sx,~Z' 12' 12' 3' 8' least. thirteen (137 feet of free and unobstructed headroom shall be vided above diving borax ds. depth marking shall be provided in the deck or the 'wall of the pool e the high water line indicating the greatest depth in feet. Diving ctures shall be securely anchored. each one (1) inch of decrease of diving board height below eight- (13) inches, required minimum depth may be decreased one (1) inch. Section 3. Mechanical. .081. Filters. Every pool shall be equipped with a recirculating em capable of filtering the entire contents of the pool in twelve .hours or ess. (1) 'Filters shall be capable of maintaining the clarity of the er to permit the ready identification, through an eight (S) foot th of water, of a diet two (2) inches in diameter, which is divided four (4) quadrants in alternate colors of red and white. a„axx oe Permitted to remain in the filter-housing tha couldybe Picked up in the next filtering cycle. 0814E Cnrtrtdg'c F.lementx Shall be llivided in Two Types: {1~) Depth .type cartridges are elements where the porosit± varies from the inlet to the dischaa•ge surface. They shall have suf ficient depth to px•ovidG adequate dirt-holding capacity sand be designer for a flow of no more than one (1) gallon per minute per five (5) cubic inches of volume with a. pressure drop not to exceed two (2) psi ai;ros: clean' cartridges and not to pass any particulate matter larger than twenty-five (L,i) microns. -{2) Area. or surface type cartridges are those which rely of the surface area for thait• dirt-holding capacity and they should follo~s the same flow' per square foot of area as diatomite titters, namely three (3).gallons per mSuute per square foot of filter. area for vacuun filters.. 08142. Additional Stundnrds for C'artruige"Pgpe Filters (1) b'iltera shall. fie capable of filtering entire contents: ix twelve -(]2) hours or less. (3) Filter capacity' shall be such that- it need pat be cleaner more freduently than once every four (4) days raider proper condition: of,water and operatioxi: (~) All filters shall be designed so as ,to permit easy i•emovin€ of the c ertridges. A82; Kecirculation Pumps., The recirculating pump shall haul Sufi-icieni capacity to provide the rated flows of the filter system,. withour exceeding the head loss at .which the pump will deliver such flows. The pump motor shall riot be, operated at an overload which exceeds the service factor. . U.) Pool pump shall lie equipped ou the inlet side with ar approved type hair and lint interceptor. The basket of the interceptor shall be non-corrosive and have au open screen surface of at leas four;(4) times the cross sectional area of the inlet pipe. (2) When the filtering and pumping equipment is installer above ground at a level below the overflow level of the pool as may br dictatEd by the contour of the plot un which the pool is constructed, s valve -shall be installed on the xnain suction line located in an accessibh place aritside of the walls of the pool. .088. Pool Piping. The poor piping shall be sized to permit the rpted flows for filtering and cleaning without exceeding the maximun head, at which the punin will provide such flows. In ~~eneral, the water velocity in the pool piping should not exceed more than ten (10) fee' per second: Where velocity is to exceed ten (10) feet per second sum Mary calculations shall be provided, to show that rated flows ara possible with the pump and piping provided. The recirculating' pipin€ and fittings shall meet the following requirements: (1) ~4'here vacuum fitting(s) is/are provided, it/they shall b~ located in an accessible position(s) below the water line. (2) Pool tecirculation piping, passing through the pool strtxc tare, shall be copper tubing (with a minimum wall thickness of type "L"„ brass or an approved equal (3} Pool piping systems shall be constructed of materials pre scribed in the village plumbing code, provided that as a minimun pgly,ethlene plastic materials, meeting the standards prescribed b3 Commercial Standard 197-59 published by the ti.S. Department of Com~ coerce and bearing the National Sanitation Foundation seal of approval may 1.>e used except for that portion of the system passing througl pagl.structure. Where a water heater is incorporated into the recircula~ trop system, the output temperature shall be regulated in such a manner as to not effect the strength of any plastic piping used. The minimun pressure rating for plastic acceptable herein shall be at least Z5 pounds (4) Installation of the pool piping, except for the pool water supply .line, may be clone by the pool contractor subject to inspectior prior.:to covering the system. .0831. Recirculating Skimming Devices. Recirculating Skimsninl devices shall be provided to skim the surface of the pool with a minimutz of at least oils (1) unit installed to serve each pool' with such additions: wiitis :as'-may be required to provide a minimum of one for each six hundred (600) square feet of Pool water surface or fraction theregf The location of recirculating skimmers and the pool inlets shall be csrefu,lly determined so that the pool inlets assist the skimming actior to, a;d~equately remove the srirface film on the pool water surface WYxen' pools are irregularly ar. specially shaped, skimming devices shat: be located in each offset. (1) The recirculating .skimmers shall he of sufficient tots: capacity "to be able to rexriove forty (40) to sixty (60) percent of the Content of the pool; the xnain outlets at the bottom of the pool also to be of sufficinet capacity to remove forty: (40) to sixty (60) percent The' skimming action shall be as uniform as practicable, with. gooc cit~culation toward the skimmers and without "dead spots" on the poo. vc-ater surface. 1Fhere skimmer-filter combination units are to be in• stalled, the influent shall be regulated in such a manner as to consist of forty (40) to sixty (60) .percent passing through the skimmer sectior of th;e device and furty (40) to sixty (60) percent 'of the flow from the main drain. (2) It shall be possible to regulate the rate of,flow through the skimming device.. Each device shall be individually calved and capable of being discharged to waste. • (3) The floating weir in the recirculating skimmer shall be self-adjusting to variations in pool water level over a range of at leas) three (3) inches. (4) A device shall be incorporated therein to prevent airlocB in the suction-line. (5) An easily removable and cleanable basket or screen shaD lie provided to trap large solids. (6) Skimming devices shall be built into the pool wall. :0832. Inlets. Inlets shall be located so as to produce as far a: possible 'uniform circulation of water throughout the pgol without the existence of dead spots. (1) A minimum o~f two (2) inlets shall be required for pool: having a periphery up to 120 lineal feet, provided that an inlet shat be required for each additional forty (40) lineal feet or fraction thereof tiVhere automatic slimmers ax;d skimmer-filter units are used, inlet: shall be' installed so as to direct the flow of water in a horizontal plant to the skimming device inlet. The minimum discharge depth of poo inlets shall be 10 inches below the pool operating level: When irregular shapes ,are incorporated into pools, additional inlets shall be installer as stipulated above. (2) Suitable facilities for adding make-up water as needed shat be 'provided. There shall be no physical connection between the water supply line and the pool system. If the make-up 'water is added directlj to the pool, the fill snot shall be at least six (6) inches above the apps; rim of the pool. If the make-up water line discharges to a surge o: balancing tank, the point of discharge shall be at least six (6) inche above the rim of the tank, If a hose connection from a sill cock or other plumbing fixture is to be used for supplying make-up water, then ai approved vacuum breaker shall be installed between the sill cock o. control valve at the fixture and the hose connection. AttY sill cock uses for this service shall be located a'bbve ground level. No over the rim fill. spout will be accepted. unless located under a diving' board o'.