My saltwater pool water is clear and there does not seem to be any problem with it. However, the drop test shows high ph and total chlorine. The digital test shows high ph and 0 free chlorine. When I add muratic acid the ph drops for a few hours, then returns. I have a 4m overflow, so I am wondering if that might be the cause? The internet says to shock it to free up some chlorine. Does that make sense to anyone?
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