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Gutter drains zed not more than 15 feet apar ad designed to <br />drain within 10 minutes after being flooded. Guuter sloped ec fg <br />one-half inches (23N) in ten feet (10'). <br />Drainage pipes minimum two inches (2") in diameter provided with <br />corrosion-resistant grating. <br />Surge tank or other hydraulic arrangements provided for continuous <br />surface skimming action. SEC 7791. <br />I. Otherdevices approved by the Health Department. SEC. 7791. <br />J. 0.7793-SKIMMERS (in lieu of or with gutters) <br />1. Skimmers allowed on pool surface area not over 4,000 square feet, <br />provided that there is a central recirculation filter system. <br />9. One skimmer for each 500 square feet or fractional part. Pools up <br />to 600 square feet may have only one skimmer. <br />3. Skimmers of approved design, automatically adjustable to variations <br />in water levels over a range of three inches (3"), equipped with a <br />device to prevent air lock, provided with screen basket to trap <br />large solids. <br />Skimmers have a combined rate of flow of at least 50 percent of the <br />capacity of the pool recirculation system. <br />A maximum of four individual skim filter units allowed on public <br />pools. SEC. 7803, <br />K. SEC. 7800-RECIRCULATION (inlet fittings and piping) <br />One inlet required for each 500 square feet of pool area. Minimum <br />number of inlets -- two (2). Inlet pipe size to meet pool equipment <br />manufacturer specifications. SEC. 7789. <br />All valves should be readily accessible and identified by appropriate <br />markings. Recirculation equipment shall have two feet (2') minimum <br />clearance from walls and ceilings to permit operation and maintenance. <br />Built in or portable suction cleaner reaching all parts of the pool <br />t77=- shall be provided. Jet type units shall be provided with siphon <br />breakers. SEC. 7805. <br />Bottom drain grate slots not over one half inch (i-") wide, securely <br />fastened. SEC. 7789. <br />„A< 5. Approved rate of flow indicator on recirculation filter system. <br />6. Pressure gauges on filter influent and effluent lines installed at <br />same elevation (on centrally located filter systems). <br />On 'suction-type' filter - a vacuum gauge shall be provided on the suction <br />side of recirculation pump. <br />Hair and lint catcher installed on recirculation pump except fer suction- <br />type filter. <br />L.Filteration <br />7/7' 1. SEC. 7802-RAPID SAND PTLTER <br />a. Filter rate not to exceed 3 gpm/sq. ft. Backwash rate not less than <br />12 gpm/sq. ft. <br />11. <br />g 12 1/66