Section 675IAC20-5-17. Inlets

   (a) Water attraction inlets 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 water attraction.

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 water attraction 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) Wall inlets shall be located not less than twelve (12) inches below the waterline.

  (e) Water attractions with a width over thirty (30) feet shall have bottom inlets.

  (f) Inlets shall be designed and installed so as not to provide a hazard to bathers. All nozzles that spray from the ground shall be flush with the floor so as to not create a tripping hazard.

  (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 water attraction, 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 water attraction.

  (i) At least one (1) inlet shall be located in each recessed stairwell or other space where water circulation might be impaired. (Fire Prevention and Building Safety Commission; 675 IAC 20-5-17; filed Mar 25, 2011, 10:19 a.m.: 20110420-IR-675090789FRA; readopted filed Aug 7, 2013, 8:51 a.m.: 20130904-IR-675130181RFA)