AquaChek 7-in-1
pH reading of 7.8
High
What it means
pH at 7.8 is slightly above ideal. Chlorine effectiveness drops by 30 percent compared to pH 7.4.
What to do
Add sodium bisulfate (dry acid) per a calculator. Roughly 1.4 lb per 10,000 gallons lowers pH by 0.2.
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