675 IAC 20-2-20 Inlets

Sec. 20. (a) Pool inlets and outlets for circulated water shall be located to: (1) produce uniform circulation of water; and (2) facilitate the maintenance of a uniform disinfectant residual throughout the entire pool. Where skimmers are used, the inlets shall be located so as to help bring floating particles within range of the skimmers. (b) The minimum number of inlets required shall be based on two (2) inlets per six hundred (600) square feet of pool surface area or fraction thereof. (c) Inlets shall be sufficient in number such that the flow through any single inlet shall not exceed forty (40) gallons per minute. (d) Inlets shall be located between twelve (12) inches below the waterline and no higher than the waterline. (e) Pools with a width over thirty (30) feet shall have bottom inlets, if not equipped with a continuous gutter system with integral return inlets. (f) Inlets shall be designed and installed so as not to provide a hazard to bathers. (g) Inlets in facilities with skimmers shall be twelve (12) inches below the midpoint on the skimmer throat. Inlets in facilities with a prefabricated perimeter overflow system shall be eight (8) inches or more below the lip of the gutter. (h) Inlets shall be placed completely around the pool, each serving a linear distance of not more than fifteen (15) feet on center. The pipe serving the inlets shall form a loop completely around the pool. (i) At least one (1) inlet shall be located in each recessed stairwell or other space where water circulation might be impaired.