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    Free Chlorine is 0 and CYA at 0 htc test strip results help

    How it was 2 weeks ago VS how it's going. So i uploaded some pictures so you can see what im talking about. 2 weeks ago my water was CRYSTAL CLEAR and blue as ever. I went like 1 week with out shocking it bc I ran out of everything all at once 😅 but now it seems no matter what I've done i can't...