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Ventilation shall be provided to minimize condensation and odors. A minimum of four air changes per hour and a maximum of eight air changes per hour shall be maintained within the indoor pool area. The pool area shall be ventilated to the outside without returning air to the central heating system, or air shall be recirculated through a dehumidifying system. The building ventilation system shall be designed to preclude air in the bathroom from drifting into other areas.
('74 Code, § 11-5-7A.10) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
Inlets shall be located to produce complete and uniform circulation of water and to facilitate the maintenance of a uniform disinfectant residual throughout the entire pool. Inlets from the recirculation system shall be submerged at least 12 inches below water level. Inlets in the pool bottom shall pose no hazard to bathers. All inlets shall be adjustable to obtain the desired rate and direction of water flow. All pools shall have a minimum of one return inlet for each 15,000 gallons of water or fraction thereof. If the distance across any portion of the swimming pool is more than 30 feet, multiple inlets shall be provided on opposite ends.
('74 Code, § 11-5-7A.11) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
All electrical lights, fixtures, outlets, and other equipment shall be in compliance with the provisions of the National Electric Code. If underwater lighting is used and night swimming is allowed, area lighting shall be provided for the deck areas and shall be directed toward the deck areas away from the pool surface. The area lighting shall have a total capacity of not less than 15 foot candles. If underwater lighting is not employed, and night swimming is allowed, area and lighting on the pool combined shall be provided in an amount of not less than 30 foot candles. If underwater lighting is provided, such lights shall be so installed as to create no hazard to bathers.
('74 Code, § 11-5-7A.12) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
All swimming pools shall be provided with at least one main outlet at the deepest point. If the pool width is greater than 25 feet, multiple outlets shall be provided. Multiple outlets shall be spaced not more than 20 feet apart, nor more than ten feet from side walls and shall be located to provide uniform withdrawal of water from the deepest part of the pool. Drains shall be protected by anti-entrapment devices.
('74 Code, § 11-5-7A.13) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
(A) Overflow systems shall be provided around the entire perimeter of swimming pools. Overflow system drains shall not exceed fifteen feet on centers. The overflow gutter bottom shall be sloped one-quarter inch per foot to the drainage outlets. The outlets shall be covered with approved drain grates. The gutter shall be capable of removing continuously 50% or more of the recirculated water and returning it to the filter. Water from overflow systems shall recirculate through the filter or, in cases of pools installed prior to the effective date of this article, water may be discharged into the sewer. If a sewer is used, there shall be a minimum eight-inch air gap between the overflow system drain line and the top rim of the approved receptacle. Enclosed pipeless gutters shall be provided with clean-out covers at a maximum of 15 foot intervals and shall have a slope of not less than 1/8 inch per foot. Skimmers may be used in lieu of overflow systems provided that they shall in all respects comply with the National Sanitation Foundation Standards relating to recessed automatic surface skimmers for swimming pools. Each skimmer shall be equipped with a strainer basket and a self-adjusting weir device that shall operate freely with continuous action to variations in water level over a range of at least three inches. Skimmers shall be designed for a flow-through rate of not less than 30 gallons per minute and the total capacity of all skimmers in any pool shall be at least 80% of the required filter flow of the recirculation system. Each skimmer shall be equipped with a self-actuating equalizer line, furnished with an anti-entrapment plate or other device to prevent air lock in the suction line should the water of the pool drop below the weir level.
(B) When skimmers are used in Class A and Class B pools, a minimum of two shall be provided. Additional skimmers and skimmers used for Class C and Class D pools shall be provided for each 500 square feet of the surface area or fraction thereof. Skimmers shall be located to provide uniform withdrawal of water from the pool.
('74 Code, § 11-5-7A.14) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
The water supply to the swimming pool shall be protected from back flow, back-siphonage, back pressure, and cross-connection, and all plumbing fixtures shall be installed and maintained in accordance with municipal law. All plumbing, fixtures and piping shall comply with the Uniform Plumbing Code. All plastic piping shall have the approval of the National Sanitation Foundation. Water heaters and boilers shall comply with applicable ordinances. Pool piping shall be sized to allow the flows for filtering and cleaning without exceeding the maximum head of the pump, as rated by the National Sanitation Foundation or other similar authority.
('74 Code, § 11-5-7A.15) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
All of the plumbing drains serving the pool sewer system shall discharge into the city sanitary sewer system. There shall be no direct connection between the city sewer system and the swimming pool. The discharge outlet terminal from any pool, filter, or deck drain shall be protected from backflow by an air gap of two pipe diameters, but in no case less than eight inches above the flood level of the approved receptor. The sewer system shall meet the requirements of the Uniform Plumbing Code.
('74 Code, § 11-5-7A.16) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
A runway at least four feet wide constructed of concrete or other impervious material which shall be slip-resistant shall completely surround the pool, except that Class D pools need only provide a runway around 50% of the pool. The runway shall have a slope between 1/4 and 3/8 inch per foot away from the pool, except that the slope shall be increased to between 3/8 and 1/2 inch per foot wherever carpeting is used on outdoor pools. Runway areas of indoor pools may not be carpeted. Runways shall be an integral part of the pool walls or shall overlap the pool walls. Either deck drains or collecting troughs covered with grates shall be provided, except that outdoor pools may drain to the surrounding area, but not beyond the property boundaries. Deck drains shall be in the ratio of not less than one per 200 square feet of runways, provided that the deck drains shall not exceed 25 feet on centers. Runway drains shall not be interconnected with overflow system drain lines.
('74 Code, § 11-5-7A.17) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
(A) Slope.
(1) The slope of the bottom of any part of the pool shall not be more than one foot in every 12 feet where the water is less than five feet deep, and the slope must be even throughout.
(2) Any pool lawfully installed prior to the effective date of this article not meeting the slope requirements may continue in use if no safety hazard exists because of the slope. All portions of the pool bottom shall slope toward the pool drains.
(B) Steps, Ramps, Hand Rails, Ladders, and Seats.
(1) Criteria for Class A, Class B, and Class C pools shall be as follows:
(a) Steps for entering or leaving the pool shall be a minimum of four feet wide, unless corner or circular steps are used. If corner or circular steps are used, the maximum radius of the bottom steps shall be 42 inches, but no projection shall create a safety hazard.
(b) Ladders shall be located on at least one side of the deep end of the pool, except that pools greater than 30 feet in width shall provide ladders on both sides of the deep area.
(c) If the distance from the bottom of the pool to the runway at the shallow end is more than two feet, steps shall be placed at the shallow end of the pool except that ladders may be provided in lieu of steps on pools lawfully installed prior to the effective date of this article.
(d) Treads of ladders and steps shall be nonslip.
(e) There shall be a uniform height between ladder treads not to exceed 12 inches. Riser heights on steps shall be between seven and 12 inches and shall be uniform throughout except for the bottom riser when used as a bench or seat.
(f) Hand rails shall be provided and shall facilitate ingress and egress at all points of the steps. Grab rails shall be provided for ladders and recessed steps.
(g) Ramps may be substituted for steps depending on the proposed use of the pool, but only if a variance is granted by the Enforcement Authority.
(2) Criteria for Class D pools shall be as follows:
(a) Class D pools shall provide a minimum of one grab rail. Additional handrails shall be placed at all points of ingress where a step, ladder or ramp is provided.
(b) Steps which may also serve as benches shall be provided wherever pool depth is greater than two feet. Steps shall be 12 inch minimum width. Riser heights on steps shall be between seven and 12 inches. Riser heights shall be uniform throughout except for the bottom riser when used as a bench or seat.
(c) Benches and swimout seats shall not exceed 20 inches from the top of the water design level for Class A, B, and C pools nor 28 inches from the top of the water design level for Class D pools.
(C) Striping. For Class A pools, and all other classes of pools greater than 30 feet in width, dark contrasting stripes, a minimum of four inches wide, shall divide the pool in longitudinal lanes five to eight feet wide. The terminal ends of the striping shall be five to seven feet from the pool ends.
(D) Lifeline. A corrosion-resistant lifeline, the minimum diameter of which shall be 1/2 inch, shall be installed two feet into the shallow portion of the pool at the break in grade with its position marked by colored floats spaced no further than five feet apart. The lifeline shall be a color which contrasts with the background and shall be securely fastened to wall anchors of corrosion resistant material. Any restricted or special use areas in pools shall be separated from the rest of the pool by a lifeline attached to the side walls and supported by buoys or floats.
(E) Class C Pools. Class C pools intended primarily for the wading of small children shall have a maximum depth of 24 inches.
(F) Physical Hazards. There shall be no protrusions, extensions, obstructions, tripping hazards or other means of entanglement in the pool or on the pool deck which could cause bather injury or entrapment. Equipment and devices in the pool and at pool side, such as ladders, drain covers, anti-vortex covers, handrails, fill lines, and diving devices must be installed so they can only be removed or adjusted by the use of tools.
('74 Code, § 11-5-7A.18) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
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