ATCP 76.17 HistoryHistory: CR 22-021: cr. Register June 2023 No. 810, eff. 9-24-23. ATCP 76.18(1)(1) All pools, except whirlpools, therapy, and excercise pools. ATCP 76.18(1)(a)(a) pH and disinfectant or sanitizer. Except as provided under sub. (3), water shall be tested for pH and disinfectant or sanitizer residual at the following times: ATCP 76.18(1)(a)1.1. Daily before the pool is open to the public or before the pool is in use. Pf ATCP 76.18(1)(b)(b) Combined chlorine. If chlorine is used, the water shall also be tested at least twice a week for the combined chlorine level. Pf ATCP 76.18(1)(c)(c) Alkalinity. Water shall also be tested at least once a week for total alkalinity. Pf ATCP 76.18(1)(d)(d) Cyanuric acid. If cyanuric acid is used in the water basin, the cyanuric acid concentration in the water shall be tested at least once a week. Pf ATCP 76.18(2)(a)(a) pH and disinfectant or sanitizer. Except as provided under sub. (3), water shall be tested for pH and disinfectant or sanitizer residual at the following times: ATCP 76.18(2)(a)1.1. Before the pool is open to the public or before the pool is in use and at least 4 times daily. Pf ATCP 76.18(2)(b)(b) Combined chlorine. When chlorine is used, the water shall be tested at least once daily for the combined chlorine level. Pf ATCP 76.18(2)(c)(c) Alkalinity. Water shall be tested at least once a week for total alkalinity. Pf ATCP 76.18(2)(d)(d) Cyanuric acid. When cyanuric acid is used in the water basin, the cyanuric acid concentration in the water shall be tested at least once a week. Pf ATCP 76.18(3)(3) Electronic monitoring device. For a properly maintained electronic monitoring device installed to control pH and disinfectant or sanitizer, the operator shall: ATCP 76.18(3)(a)(a) Frequency. Manually tested the pool at least once a day for pH and disinfectant or sanitizer residual with an approved test kit pursuant to s. ATCP 76.17 Table A. Pf ATCP 76.18(4)(4) Increased testing. The department or its agent may require more frequent testing if the testing logs are not maintained and the operator demonstrates a lack of active managerial control.Pf ATCP 76.18 HistoryHistory: CR 22-021: cr. Register June 2023 No. 810, eff. 9-24-23. ATCP 76.19ATCP 76.19 Water supply and temperature. ATCP 76.19(1)(1) Water supply protection. A minimum air gap of 2 pipe diameters or 6 inches, whichever is less, shall exist between the potable water supply inlet and the overflow point of any pool, makeup tank, surge tank, solution tank, or slurry tank unless another approved backflow and backsiphonage prevention device is provided. P ATCP 76.19(2)(2) Water source. The water supplied to a pool shall be from a source approved by the Wisconsin department of natural resources pursuant to ch. NR 108, 811, or 812. P ATCP 76.19(3)(3) Water level. Proper water level shall be maintained at all times when the pool is open. Pf ATCP 76.19(3)(a)(a) Skimmers. Water levels in pools with skimmers shall be maintained at a level such that the weir is half submerged or in the case of a floating weir, used according to manufacturer’s directions. Pf ATCP 76.19(3)(b)(b) Gutters. Pools designed with gutters shall have a continuous water supply over the gutter to provide effective skimming. Pf