The Borax + Acid is one-time except for small additions to compensate for dilution (splash-out, backwashing, rain overflow, etc.).
The Borax + Acid is one-time except for small additions to compensate for dilution (splash-out, backwashing, rain overflow, etc.).
If you initially add 50 ppm just monitor it and when it drops to 30 ppm bump it back up to 50 ppm.
Retired pool store and commercial pool maintenance guy.
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