Section Env-Wq 1110.04 - Spa Circulation Systems(a) A spa shall be operated with a continuous overflow.(b) The circulation system of a spa shall be separate from that of any companion pool(s).(c) The circulation system of a spa shall maintain water quality to the standards specified in Env-Wq 1108.12 and Env-Wq 1108.13.(d) The flow rate through the spa's skimmers shall be designed to:(1) Provide more than 50% of the total turnover rate; and(2) For each skimmer, not exceed the maximum flow rate of the skimmer as certified by its manufacturer.(e) The minimum acceptable width for the intake throat of a skimmer used in a spa, measured at the weir location, shall be 5 inches.(f) Where surface skimmers are used as the spa's sole overflow system, one surface skimmer shall be provided for each 100 square feet or fraction thereof of the spa's surface area with no less than 2 skimmers total.(g) Skimmers used in a spa shall: (1) Be located so as to maintain effective skimming action over the entire surface area of the spa; and(2) Have proportioning valves that are adjusted such that the flow rate through the skimmers removes debris from the water surface.N.H. Admin. Code § Env-Wq 1110.04
(See Revision Note at chapter heading for Env-Wq 1100) #8468, eff 11-1-05
Readopted with Amendments byVolume XXXIV Number 19, Filed May 8, 2014, Proposed by #10577, Effective 5/1/2014, Expires5/1/2024 See Revission note.Amended by Volume XLI Number 19, Filed May 13, 2021, Proposed by #13198, Effective 5/1/2021, Expires 5/1/2031 (see Revision Note #3 at chapter heading for Env-Wq 1100) (formerly Env-Wq 1107.04)