(a) All pools must be equipped with either an overflow gutter or surface skimming device.
(b) If surface skimming devices are used:
(1) handholds must be provided around the entire perimeter of the pool except above steps and:
(A) if coping is used, the outer two inches must be not more than 2 1/2 inches thick; and
(B) must be not more than 12 inches above the normal water line;
(2) each skimming device must be individually controlled;
(3) each skimming device must be automatically adjustable to variations in water level over a range of at least three inches;
(4) the rate of flow through the total number of skimming devices must be automatically adjustable from 50 percent to 75 percent of the capacity of the pool filter system;
(5) each skimming device must have an easily removable and cleanable basket or screen to trap material which might clog the circulation pump; and
(6) one skimmer must be provided for each 500 square feet of water surface area plus an additional skimmer for any remaining increment of water surface area less than 500 square feet.
(c) If an overflow gutter is used, it must:
(1) extend around the entire perimeter of the pool except above steps;
(2) be constructed so that the gutter is not completely recessed into the wall and water entering the gutter cannot flow back into the pool;
(3) be capable of continuously removing 50 percent or more of the recirculated water through the filter system;
(4) be connected to a recirculation system with a surge capacity of not less than 1/2 gallon for each square foot of pool surface area, and in pools subject to heavy swimming use, a surge capacity of not less than one gallon for each square foot of surface area;
(5) be designed so that the edge of the gutter can be used as a handhold for bathers;
(6) be designed so that the overflow edge is level within 3/10 inch;
(7) be designed so that the bottom slopes not less than 1/8 inch to the foot, to outlets spaced at 10 foot intervals;
(8) discharge waste into the recirculating system, the drain pipe being not less than 1-1/2 inches in diameter. (Ord. 15256)