May 20, 2026
Permit/Opening
21 - cyanuric acid level not exceeding maximum
Cyanuric Exceeding Maximum. CA: 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 brominated pools and spas.