Re: High Borate (Borax)
Borates in about a 50 ppm concentration will only add about 10 ppm to your TA. They will form a seconday buffer system in the water (boric acid/borates) that will help stabilize your pH. They are also supposed to be algaestatic. Many people add borates to about a 50 ppm level for these very effects by using such products at ProTeam Supreme and Bioguard Optimizer! If you want to lower them you will have to drain some of your water.
To answer your question, yes you can have a high borate level with low pH and normal TA.
Retired pool store and commercial pool maintenance guy.
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