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Thread: Test results on new pool in Tucson

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  1. #32
    Join Date
    Jul 2013
    Location
    Northern Illinois
    Posts
    816

    Default Re: Test results on new pool in Tucson

    Oh my. You want a minimum 10 ppm FC (free chlorine) in your pool. You have Tri-Chlor pucks. They add FC but also add CYA and you don't want more CYA. You mentioned Di-Chlor, same thing. HTH shock adds FC but also adds calcium and your CH is high enough. You have used bleach (sodium hypochlorite), which will add FC but not affect CH or CYA. Is there any particular reason you prefer not to continue using bleach?
    Last edited by FormerBromineUser; 09-09-2014 at 11:44 PM. Reason: Added chemical composition of bleach
    26K gal 20x40 rectangular IG vinyl pool; Apr 2014: New pump, liner, auto-cover, & water; Pentair Whisperflo 1HP pump; Pentair Trition sand filter; Cover/Star CS-500 auto cover; Taylor K-2006C; OTO

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