Minimum recommended level of Residual chlorine in Swimming pools is:
- Level of residual chlorine to be maintained for swimming pool sanitation is > 1.0 mg/L with contact period of 1 hour. - Also Remember, Free/ residual chlorine levels recommended in:- Drinking water = >= 0.5 mg/ L ; with contact period of 1 hour. Drinking water to kill cyclops = >= 2.0 mg/L ; with contact period of 1 hour.
0.5 mg/L
0.7 mg/L
1.0 mg/L
2.0 mg/L
Water