(a) Each pool with a water capacity of 800 gallons or more or a depth greater than two feet must be equipped with a recirculation system consisting of pumps, hair and lint catchers, filters, and pipe connections necessary to connect to the inlets and outlets of the pool.
(b) Filters. Filters must meet National Sanitation Foundation standards, or be approved by the director. The director shall disapprove a filter if it does not backwash thoroughly or does not filter at a sufficient rate.
(c) Pumps. The pumps must be of an adequate size to turn over the pool water capacity within six hours for a public pool and eight hours for a private or semipublic pool.
(d) Hair and lint catcher. A catcher must be installed on the suction side of the pumps to prevent hair, lint, and other extraneous matter from reaching the pumps and filters.
(1) Catchers must be designed so that they are easily dismantled for cleaning.
(2) If the catcher has circular openings, the diameter of each opening must not exceed 1/8 inch. If the catcher has square punched or square mesh openings, the openings must not exceed 1/10 inch on a side.
(3) The total area of catcher openings must be at least four times the cross-sectional area of the inlet pipe to the catcher.
(e) Cross connections. Cross connections between the pool water or the recirculation system and the water supply are prohibited. The pool must be designed so that fresh water added to the pool will not create a cross connection. Other cross connections must comply with applicable city ordinances. (Ord. 15256)