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Thread: Fizzy water - is there something "off" in my water?

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    Fizzy water - is there something "off" in my water?

    I can't remember other pools "fizzing" when kids jump in - does that mean our pool has something wrong in the chemistry?

    The numbers are almost always this:

    FC b/t 2 - 3
    CYA b/t 30-40
    pH b/t 7.2-7.5
    TA b/t 70-80

    Thanks!!
    Cheryl
    21x41x54" AG Artesian Seville II
    Installed around 2004 - we moved here in 2008
    23,000 gal
    Hayward SwimPro 256T Sand Filter
    1HP 2speed Hayward Power Flo Matrix
    (and have 2HP Hayward Swimpro and a 2hp 2speed Waterway Hi-Flo pump as back up also!! lol)
    No heating - other than Solar SunRings
    Central IL

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    reebok's Avatar
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    Re: Fizzy water - is there something "off" in my water?

    sounds like algaecide. what are you using to test? strips? you're brushing the edge of the chlorine/cya chart with those levels, especially if you aren't real sure what they are.
    16x32 21,000 gallon in-ground exposed aggregate, 1.5hp pump, 120 sqft catridge filter, birdcage, solar panels, aquavac tigershark qc robot.

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    Butterfly's Avatar
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    Re: Fizzy water - is there something "off" in my water?

    It does sound like algacide, but we really need a full set of test results

    FC
    CC
    pH
    TA
    CH
    CYA

    And, as reebok asked, it would be good to know what test kit are you using.
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    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

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    Re: Fizzy water - is there something "off" in my water?

    I don't think it can be algeacide, because I've never used the first drop of it. We replaced the liner, and all I've used since then is ph+, stabilizer/conditioner, alkalinity plus (all left over from last year) and 6% bleach.

    I use the TF-100 test kit. The numbers I had posted below are the range that I get basically every time I test the water - the only thing that really moves is the chlorine.

    My numbers on the latest "full" test were:
    FC 3.5 (which is higher than typical - I must have just added chlorine? I can't remember)
    CC .5
    pH 7.5
    TA 80
    CH (don't test this)
    CYA b/t 30 and 40 on the cylinder when I can't see the black dot

    Thanks again for your help!
    21x41x54" AG Artesian Seville II
    Installed around 2004 - we moved here in 2008
    23,000 gal
    Hayward SwimPro 256T Sand Filter
    1HP 2speed Hayward Power Flo Matrix
    (and have 2HP Hayward Swimpro and a 2hp 2speed Waterway Hi-Flo pump as back up also!! lol)
    No heating - other than Solar SunRings
    Central IL

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    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    37,887

    Re: Fizzy water - is there something "off" in my water?

    I would raise your FC level up a little extra high. That will help break down any organic foaming agents that might be in the water.
    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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