If you have a good test kit that uses FAS-DPD testing for FC and CC it is easy to determine how often to shock. Shock whenever the CC is .5 ppm or above.
Re: How often to shock?
If you have a good test kit that uses FAS-DPD testing for FC and CC it is easy to determine how often to shock. Shock whenever the CC is .5 ppm or above.
Retired pool store and commercial pool maintenance guy.
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