May 4, 2026
Permit/Opening
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 exceeding maximum allowable value of 90 with a measured reading of 127. CA: Discussed decreasing CYA with CPO so that it does not exceed 90.