SC Swimming Pool Practice Questions - South Carolina Swimming Pool Contractor Examination Exam

Under R.61-51.J.14(b), free chlorine in a South Carolina public swimming pool must be maintained at which residual?

0.2 to 0.5 ppm 1 to 8 ppm free chlorine 10 to 20 ppm free chlorine during open hours No residual is required if the filter is running

Correct Answer:

1 to 8 ppm free chlorine

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