675 IAC 20-3-6 Inlets

Sec. 6. (a) Spa inlets and outlets shall be arranged to produce a uniform circulation of water throughout the spa. (b) Water velocity in the spa piping shall not exceed ten (10) feet per second with the following exceptions: (1) Suction velocity shall not exceed six (6) feet per second. (2) Water velocity in existing asbestos cement pipe shall not exceed six (6) feet per second. (3) Water velocity in copper pipe shall not exceed eight (8) feet per second. (c) All spas shall have a surface skimming (overflow) system and dual drain outlets at the lowest point on the spa floor. The dual drains shall be spaced at least three (3) feet apart. When skimmers are the sole overflow system, not less than one (1) skimmer shall be provided for each one hundred (100) square feet, or portion thereof, of water surface.