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Thread: Amount of chlorine?

  1. Back To Top    #1

    Join Date
    Jun 2011
    Miami, OK

    Amount of chlorine?

    Just wondering if I might need to recheck my CYA...I checked it mid-Spring and #'s were fine. It has been in the high 90's and 100+ degrees here in OKlahoma......and I have had to daily add anywhere from forty to ninety ounces of bleach. Is that normal with the heat? My pool is problems.....very clean and sparkly........but just wondering...............
    Gunite pool. Pool = 21,500 gallons w/ a hot tub = 606 gallons that overflows into the pool. Of course when weather is hot I do not turn the hot tub on...but continue to let it overflow into pool [because it looks nice!] Converted from Pristine Blue to BBB at the end of June, 2011. SunRay auto vacuum. StaRite Sand Filter. LOVE BBB! It is so simple & easy & inexpensive!

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: Amount of chlorine?

    Certainly would not hurt to retest CYA to see where it is at (what was it last time?)
    How much sun does the pool see?

    For a 19k gallon pool, 40oz = 1ppm FC ... so if you are only adding 1-2ppm FC per day and staying in the recommended FC ranges for your CYA level, that is pretty good (almost unbelievable actually)

    Most pools seem to loose 2-4ppm per day depending on exposure/load/etc.
    Jason, TFP Moderator
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  3. Back To Top    #3
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Amount of chlorine?

    The higher the temperature, the more chlorine you will need to add. For your pool I would expect somewhere around 70 oz of 6% to be average usage. Using more than that on an extra hot day is normal.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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