Question

The recommended level of free chlorine in the swimming pool water is:

A) 1 to 5 parts per million
B) 15 to 20 parts per million
C) 2 to 15 parts per million
D) 2 to 20 parts per million

Answer 1

The recommended level of free chlorine in swimming pool water is 15 to 20 parts per million.

Step-by-step explanation:

The recommended level of free chlorine in swimming pool water is B) 15 to 20 parts per million. This concentration is necessary to kill bacteria and other microbes in the water. Chlorine is commonly used as a disinfectant in swimming pools to ensure the water is safe for swimmers.