What is the recommended level of chlorine in Swimming pool?
Correct Answer: >1 mg/L
Description: Residual chloride levels in: (i.e. after the contact period of one hour) Drinking water- >/= 0.5 mg/L or ppm Swimming pools- >/= 1.0 mg/L To kill Cyclops in Drinking water - >/= 2.0 mg/L Residual chlorine level can be measured using chloroscope/ Ohotoluidine test.
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