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Thread: When to add CYA when converting from Baqua to Chlorine

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    When to add CYA when converting from Baqua to Chlorine

    Love the website. I've learned so much. Started the conversion last Friday. Pool looks great! Still losing 3 ppm at night, though (from 15 to 12), with about 1 ppm CC. Just wanted to confirm that I should wait to add CYA until the pool meets the three basic preconditions for starting to balance everything.

    PH 7.5
    TA 100
    TC 175
    11300 gal vinyl 15x30 52" Above ground
    Sand filter
    1HP Pump
    Willamette Valley Oregon

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    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887

    Re: When to add CYA when converting from Baqua to Chlorine

    Welcome to TFP!

    When doing a baquacil conversion, you should first wait for the FC level to hold overnight. Then change the filter media, then add CYA. After that, if the CC level is still above 0.5 continue with FC at 15 until CC is 0.5 or lower.
    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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