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Thread: When can you swim after Cal Hypo

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    When can you swim after Cal Hypo

    How long should you wait after using Cal Hypo to bring your chlorine level up to a normal level other words not shocking the pool but merely adding a few ppm to bring it up to say 4ppm ..dissolved in a pail and poured in?
    Glenn - Pickering, Ontario
    Circa 1980 Vinyl In-ground 80,000 Ltrs. ~ K2006 Kit ~ Hayward Pump/Navigator/Sand Filter ~ Raypak 255 Gas Heater

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    Join Date
    Aug 2010
    Dallas, TX

    Re: When can you swim after Cal Hypo

    Immediately I would say. It's just chlorine and calcium. You might wait an hour for everything to get stirred around, sweeping will help, but I see no reason to wait.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: When can you swim after Cal Hypo

    An hour is completely safe. Half an hour or less is probably fine, but that depends on how good your circulation is.
    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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