Depends on what you TA is at. If it's at the low end of the recommended range and the CH not above 500 ppm AND you have no visible scaling happening then you might be ok.
Re: Phosphoric acid & pH
Depends on what you TA is at. If it's at the low end of the recommended range and the CH not above 500 ppm AND you have no visible scaling happening then you might be ok.
Retired pool store and commercial pool maintenance guy.
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