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Thread: Using Too Much Chlorine

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    Using Too Much Chlorine

    I've started using a little over 2 ppm per day of chlorine. This started about 3 weeks ago.
    That's up from .5 ppm (or less) a day before Winter.
    My temps are 40 something at night and 70's during the day.
    I just measured CYA and got 50, 40, 50 with three tests.

    Pool is clean with a few leaves getting into it each day. I keep them cleaned up.

    Any ideas?

    Thanks
    10,000 gal / Plaster / Cartridge Filter / 1 1/2 HP pump motor/ TF-100 test kit.

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    Mod Squad jblizzle's Avatar
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    Re: Using Too Much Chlorine

    Sounds normal since the sun is becoming more intense. A loss of 2-3ppm per day is pretty typical.

    In fact one of the mods in Texas said he loses 4ppm in the summer with a CYA of 60ppm.
    Jason, TFP Moderator
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    pwrstrk's Avatar
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    Re: Using Too Much Chlorine

    Your fine 😎
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    JasonLion's Avatar
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    Re: Using Too Much Chlorine

    Chlorine usage is greatly affected by water temperature. If the water has been warming up recently, that all make sense. If you water temperature is still down below 50 degrees then something strange is going on.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Butterfly's Avatar
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    Re: Using Too Much Chlorine

    You could do an OCLT to rule out/in organics.
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  6. Back To Top    #6

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    Re: Using Too Much Chlorine

    Thanks guys. I won't worry about it.

    As a side note:
    I started BBB in September with a CYA of zero.
    I added 4 lbs of CYA- using the sock etc.
    I could never read over 20 ppm, even after a couple of months wait. The pool store tested it and also tested 20.
    Today I tested in for the first time in months with good, solid 40-50 ppm readings.

    Odd, but I'm going with the 40-50 readings.
    10,000 gal / Plaster / Cartridge Filter / 1 1/2 HP pump motor/ TF-100 test kit.

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    Patrick_B's Avatar
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    Re: Using Too Much Chlorine

    That isn't too high a FC loss at all. I wouldn't discount checking with an OCLT just to be sure, but that is going to be typical as summer approaches. Even more when you use the pool.
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