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    CYA level extremely high - need to drain / refill pool but have questions

    Hello all, my pool chemistry is out of whack and I would appreciate any advice. Our CYA is 185 ppm with Free Chlorine of 27ppm. Our PH is also very low based on using a test strip and from the Leslie's pool store test, which yielded a PH of 6.4. I tried to test PH with our Taylor kit but the...