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  1. C

    LSI, CSI, APPs, Watergram…

    I am new to the forum and enjoy reading the useful information. I mostly keep (or at least try to!) my pool water within the ranges given on the forum. My pool is SWG, values are (from Taylor's Kit): pH 7.6 CH 230 ALK (total) 70 CYA 45 [I keep this less than 50 ppm because I have an ORP probe]...