Please post the values for FC (free chlorine). It may be interfering with the pH test.
Re: Intex 20 x 12 x 48
Please post the values for FC (free chlorine). It may be interfering with the pH test.
Oval 12.5K gal AGP; Hayward 19" sand filter; Pentair Dyn 1 HP 2sp pump on timer
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