Minimum recommended level of Residual chlorine in Swimming pools is:
Correct Answer: 1.0 mg/L
Description: - 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.
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Social & Preventive Medicine
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