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testing results from this evening CYA 50 / TA 240 / PH 8.4 / FC 3 / TC 3/ TH 100 16 x 16 x 4 ( but at an angle ) round above ground Coleman pool ( I don't know what kind of filter its a round filter I have to rinse out or replace every 2 weeks or so) I have about 1 month experience with a...