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• Monitoring of residual chlorine and pH levels should form part of the daily maintenance plan for swimming pools. Recommended residual chlorine level between 1 and 3 mg/L in treated recreational waters such as swimming pools, spas, and hot tubs. For effective disinfection, the pH of these waters should be between 7.2 and 7.8.

Monitoring of residual chlorine and pH levels should form part of the daily maintenance plan for swimming pools. Recommended residual chlorine level between 1 and 3 mg/L in treated recreational waters such as swimming pools, spas, and hot tubs. For effective disinfection, the pH of these waters should be between 7.2 and 7.8.