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The pool walls and underwater pool surface shall be a light color except that decorative wall tiles may be any color when such tiles are installed at the top of the pool wall or as a safety measure to draw attention to steps or other structures and are maintained in a clean and sanitary condition.
('74 Code, § 11-5-7A.3) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
The inside wall surface of a pool shall be vertical, except where coved construction is used between the side walls and the bottom of the pool. In coved construction, the radius of curvature in the area less than five feet deep shall not exceed six inches at a depth of three feet six inches and shall not exceed two feet at a depth of five feet. There shall be a uniform transition in the cove throughout.
('74 Code, § 11-5-7A.4) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
Permanent depth markings of a contrasting color and of sufficient size to be clearly visible across the pool shall be provided and placed in pairs, one of each pair being on either side of and at both ends of the pool on the vertical wall near the water level and permanent depth markings of a contrasting color and nonslip material at least four inches high shall be placed on the pool deck near the pool edge. A pair of markings shall be placed at each successive one-foot increment of depth, except depth markings shall not be required to be placed less than four feet apart. In addition the minimum, maximum, and five-foot depths shall be so designated near the water level and on the pool deck near the pool edge. Depth markings on irregularly shaped pools shall designate depths at all major deviations in shape as well as conform to the other requirements of this section. In pools in which the central area of the floor of the pool is deeper than the sides, such as Class D pools providing perimeter seating, the range of depth of the floor shall be indicated on the deck at appropriate locations, but no less than four feet apart.
('74 Code, § 11-5-7A.5) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
In a rectangular pool or a T-, L-, or Z-shaped pool, diving shall be limited to the end or ends. In a free-form shaped pool, diving shall be limited to the area approved in writing by the Enforcement Authority. In any design, the diving area shall be separated from the main swimming area (section of pool where water is five feet deep or less) by a lifeline or other physical barrier. Whenever diving boards are to be used, the dimensional requirements under the following section shall apply in order to have adequate area and depth of water for diving.
('74 Code, § 11-5-7A.6) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
(A) Diving Boards and Platforms. Diving boards and platforms shall have a nonskid surface. All boards and platforms one meter or higher shall provide guard rails which shall be at least 30 inches above the diving board and extend to the edge of the pool wall. The riser height of steps on diving boards and from steps to the deck shall not exceed 12 inches and shall be even throughout. Diving boards and platforms shall be constructed, installed, and maintained to provide the maximum safety for the diver. The requirements in this section are critical safety requirements based on board or platform height and location. A board or platform at a height between the following designations shall meet the more restrictive requirements of the higher board or platform. In the following divisions of this section, the term PLUMMET shall mean an imaginary line which is perpendicular to the water surface, measured from the end of the board or platform, and from the center of the board or platform. Variances from any requirements of this section shall not be issued. The diagram referenced below is set forth on following page.
(1) The distance from the plummet back to the pool wall shall be "A" on the diagram and shall not be less than the distance indicated on the diagram.
(2) The distance from the plummet to pool wall at side shall be "B" on the diagram and shall not be less than the distance indicated on the diagram.
(3) The distance from plummet to adjacent plummet shall be "C" on the diagram and shall not be less than the distance indicated on the diagram.
(4) The distance from the plummet to the pool wall or five foot depth ahead shall be "D" on the diagram and shall not be less than the distance indicated on the diagram.
(5) Clear distance from board to ceiling overhead shall be "E" on the diagram and shall not be less than the distance indicated on the diagram.
(6) (a) The depth of water at the plummet shall be "H" on the diagram and shall not be less than the distance indicated on the diagram.
(b) The required depth of water for "H" shall be maintained for a minimum of ten feet beyond the plummet for a one meter or higher board or platform before any upward incline in floor slope begins.
(B) Deck Level Board. The following are the requirements for deck level diving board installations:
(1) An area which is a minimum of four feet square, with a depth of not less than eight feet, six inches, shall be provided in the diving portion of the pool. The four foot square area shall be in line with the center line of the diving board. The nearest edge of the square area shall be no less than eight feet from the edge of the deep end of the pool. See the diagram set forth on following page.
(2) The unobstructed area above the diving board shall be constructed so that there is no possibility of the diver touching any overhead object
(3) The projection of the diving board over the pool's surface shall be a minimum of two feet and a maximum of four feet. The centerline of the board shall be a minimum of eight feet from the side walls of the pool and all other boards.
(4) The diving portion (section of pool where water is over five feet deep) shall be a minimum of 18 feet in length with the centerline of the deepest part of the pool being not less than ten feet from the deep end of the pool. See the diagram set forth on the following page).
(C) Starting Blocks and Water Slides. Starting blocks and slides may only be used if the pool depth is maintained at the level recommended by the manufacturer of the blocks and/or slides. Starting blocks shall have a nonskid surface. Starting blocks which have not been permanently installed shall be removed from the pool area after authorized use. The requirements of the U.S. Consumer Product Safety Commission Safety Standard for swimming pool slides as published in the Federal Register for standards relating to swimming pool slides shall be binding. Slides must provide a smooth and easily cleanable surface without cracks or joints excluding well-maintained structural joints. Slides shall comply with critical safety requirements of this section measured from the terminus of the slide above design water level.
('74 Code, § 11-5-7A.7) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
No fill spout shall constitute a safety hazard to persons in the pool area. The discharge end of the fill pipe shall have a minimum effective air gap of six inches above the overflow level of the pool.
('74 Code, § 11-5-7A.8) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
(A) Pools shall be of the recirculating type. Provisions shall be made for complete, constant, continuous circulation of water through all parts of the pool. The circulation system shall not be turned off except for necessary maintenance or when the pool is taken out of service for an extended period of time. A recirculation system consisting of piping, pumps, filters, water conditioning and disinfectant equipment and other accessory equipment which will clarify and disinfect the volume of water in the pool shall be provided for all swimming pools. Pools shall be provided with a rate flow meter or meters installed in accordance with manufacturers directions to measure all necessary rates of flow as indicated by this article. A lint and hair catcher shall be provided on all circulation pump suction lines. All swimming pool water shall be recirculated through rapid sand, high rate sand, cartridge-type or diatomite filters. The rate of flow through the filter shall not exceed the National Sanitation Foundation approved rate. All filters shall bear the Seal of Approval of the National Sanitation Foundation.
(B) (1) Pump and motor units for recirculation shall be selected for performance and will meet the conditions of quantity required for filtering and cleaning the filters with the total dynamic head developed by the complete system. The requirements for filtration shall be based upon the maximum head loss developed immediately prior to washing the filters. Pump performance curves for the unit to be installed shall be submitted with the construction plans for approval.
(2) The filtration system shall be designed to be operated at a rate sufficient to assure a complete recirculation of the pool water through the filter and automatic disinfection system within the following maximum time periods:
(a) For Class A and Class B pools, six hours;
(b) For Class C pools, two hours;
(c) For Class D pools, one hour
(3) Any filtration system lawfully installed prior to the effective date of this article which does not consistently meet the maximum time period may continue in use only if the filtration system complies with all standards of disinfection and water clarity established elsewhere in this article. A system which is not consistently in compliance must be upgraded to meet the recirculation requirements of this division (B) by the deadline established in writing by the Enforcement Authority.
(C) Filters shall be piped for effective backwashing, excluding disposable cartridge-type filters. If rapid sand filters are used, a minimum of three filters shall be provided. The backwash rate shall meet National Sanitation Foundation approved backwash rate. Disposable cartridge filters shall be kept clean.
(D) Provisions shall be made for disposing of backwash water and pool contents to the city sanitary sewer. A two chamber sand interceptor served by a sewer line meeting the requirements set forth in the Uniform Plumbing Code (UPC) shall be provided for all backwash systems installed on a pool after the effective date of this article.
(E) Diatomaceous earth filtered water must be discharged into a sewer in a manner which eliminates solids from the discharge. This shall be done by using a separation tank, receiving chamber, or any other permanent method approved by the Enforcement Authority.
(F) Nonpermanent media filters shall also have suitable provision for adding feed chemicals or filter media.
('74 Code, § 11-5-7A.9) (Ord. 12-1978; Am. Ord. 59-1987; Am. Ord. 51-1989; Am. Ord. 12-1993)
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)
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