§ 13-193. Sand filters.

Latest version.

(a)

Appurtenances. Each filter tank shall have an access port for inspection and servicing. Each filter shall have both influent and effluent pressure gauges with a minimum face size of two (2) inches, and a manual air relief valve. The filter system shall have an adequately sized, inline backwash sight glass, on the backwash line. All appurtenances shall be conspicuously located for quick inspection.

(b)

Piping and valves. The filtering system shall be designed with all valves and piping required to permit filtering to pool, filtering to waste, filter bypass to waste, and complete drainage of the system. The piping layout shall accommodate proper maintenance, operation and inspection.

                    
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