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Thread: powder chlorine.......

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    powder chlorine.......

    Does anyone know of a powder chlorine that doesn't increase the cya and lower ph? Is bleach the only option? THANKS
    25,000 gallon....36x18....inground vinyl....hayward 1 1/2 h.p. pump.....pentair de filter

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: powder chlorine.......

    You should read How to Chlorinate Your Pool. All forms of chlorine have disadvantages.

    Cal-hypo comes in powder form and does not add CYA or lower the PH. But it does add CH, which will eventually become a problem.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Join Date
    Mar 2007
    Coastalish 'down easter'

    Re: powder chlorine.......

    The cal-hypo also needs to be pre-dissolved before adding it to a liner pool!
    Luv& Luk

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

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    Re: powder chlorine.......

    If you don't mind spending the money you could use lithium hypochlorite but be aware that it is the MO$T EXPEN$$IVE form of chlorine there is. It is fast dissolving and has very few drawbacks

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