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Thread: Safe for kids to swim with FC at 22 ?????

  1. Back To Top    #1

    Join Date
    May 2012
    Jackson, TN

    Safe for kids to swim with FC at 22 ?????

    I noticed what appeared to possibly be the beginning stages of algae when I went to clean my pool yesterday morning. The water was slightly cloudy with some suspicious yellowish looking dirt all around the seams of the liner. I went ahead and raised it to shock levels. Shock level for my pool is around 22 - I overshot it a bit and had it at 29-30 last night. I did an OCLT and this morning it was 27.5-28.0. The pool is clean but the water is still a little cloudy in the deep end. I can see the bottom but it's just not crystal clear like normal.

    My issue is that we have a house full of kids that want to go swimming. I know the standard response is that it's safe to swim up to shock levels. Is it safe to let them swim with the FC this high? I'm waiting to check it again in a couple of hours to see if it's dropped down to around 20 or so which is my shock level. I don't want kids with burning eyes, itchy skin and bleached hair and swimming suits. Any suggestions?

    Test results this AM.....

    FC 28
    CC 0.0
    CYA 55
    TA 70
    pH (FC is too high to get an accurate reading - was 7.6)
    In-ground, vinyl pool, 26,000 gals
    Hayward Sand Filter, Aquarite SWG, Hayward Ecostar Pump

  2. Back To Top    #2
    elwood58's Avatar
    Join Date
    May 2012
    Sun City West Arizona (2nd Home)

    Re: Safe for kids to swim with FC at 22 ?????

    Up to shock level, zero CC and clear water, are the test for letting the kids in. If all three are OK, then have fun.
    14100 Gal IG MiniPebble, Pentair Intellichlor IC-40 SWG, Sand Filter, Pop Up Cleaning, Intelliflo VS Pump, Aquacal Heatpump/Chiller, 1/4 Acre Desert Landscaped, Lots of Deck. Built in 1984, updated in 2012 and 2014
    "If you don't measure it, you can't manage it!"

  3. Back To Top    #3
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Safe for kids to swim with FC at 22 ?????

    With CYA at 55, shock level is around 22, so swimming is fine as soon as FC goes below 22.
    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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