CYA test should be accurate. Tests that depend on indicators (pH, TA) can have interferance from high chlorine. some CH tests also will have interferance from high chlorine but not all, CH will definately show interferance from metals in the water.
CYA test should be accurate. Tests that depend on indicators (pH, TA) can have interferance from high chlorine. some CH tests also will have interferance from high chlorine but not all, CH will definately show interferance from metals in the water.
Retired pool store and commercial pool maintenance guy.
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