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To adjust the pH levels using muriatic acid makes me a little nervous. Are there any negatives to using Walmart's HTH pH Plus:
•Raises pH levels
•For use with swimming pools
•5-lb canister
or
HTH pH Minus:
•Lowers pH levels
•For use with swimming pools
•7-lb canister
"pH plus" is usually sodium bisulfate -- or half-reduced sulfuric acid. It's also sometimes named "sodium hydrogen sulfate" (but NOT: sodium hydrosulfite, which is different!)
In a vinyl pool, the only down side to this product is increased cost. In a concrete pool, sulfate build-up can damage concrete.
So to raise the pH level borax would be a better choice?
Yes, to raise pH, use 20 Mule Team Borax (laundry aisle at Walmart).
Sometimes I can gather too much information and confuse myself. I just printed The BBB Method and I think I'll be OK. Thank you.