Apr 13, 2026
Permit/Opening
18 - combined chlorine level 0.4 ppm or less
Regulation: 511-3-5-.17(1) - (1) disinfectant levels (a) free chlorine, ppm in pools not using cyanuric acid or a stabilized chlorine compound use (b),1.-5.
Observed combined chlorine level exceeding 0.4ppm difference. CPO should adjust chemical levels and TDS to ensure maximum effectiveness of disinfectant.
21 - cyanuric acid level not exceeding maximum
Regulation: 511-3-5-.17(4) - (4) stabilizer (if used) cyanuric acid,ppm ideal: 30-50 maximum: 90 comments: if stabilizer is: too high: - may reduce chlorine efficacy too low: - chlorine residual rapidly destroyed by sunlight note: stabilizer is not needed in indoor or br
Observed cyanuric acid levels exceeding maximum recommend (90ppm). CPO should lower cyanuric acid level to ensure maximum effectiveness of disinfectant.