Re: Intex 20 x 12 x 48
You will need approximately 40 oz of CYA to get within 30 - 50 ppm. Add 20 oz now using the sock method. Wait a week, test CYA, add more as needed.
You can broadcast borax over the surface or you can put it in the skimmer with the pump running or you can dump it in front of a return with the pump running. It dissolves very quickly. Some people get a mild cloudiness when they broadcast it. It doesn't last and isn't anything to worry about.
Oval 12.5K gal AGP; Hayward 19" sand filter; Pentair Dyn 1 HP 2sp pump on timer
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