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I got my TF-100 test kit the other day and now would like to know if I'm on the right track. Numbers tested on 5/14/13: PH = 8.2 FC = 3.5 CC = 0 T/A = 170 CH = 340 CYA = 20 SALT = 3100 I lowered my PH with HTH Sodium Bisulfate (SB) (7 boys swam the evening before, tested ph in morning at 8.2...

Please start your own thread :wink: Thanks, Butterfly Split from here: post489020.html#p489020 Hello, new here also. And having the same problem on our fiberglass pool. The vitamin C tab does remove the stain, but brushing and rubbing the stain with organic cleaner does nothing. The pool...