AquaChek 7-in-1
pH reading of 6.8
Low
What it means
pH at 6.8 is below the safe swim range and is corrosive to metal equipment (heater coils, ladders).
What to do
Add sodium carbonate (soda ash) per a calculator to raise pH to 7.4. Roughly 6 oz per 10,000 gallons raises pH by 0.2.
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