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Thread: Need to know if I add chlorine when My CYA is 20. 0 chlorine. opened pool today.

  1. Back To Top    #1

    Join Date
    Apr 2015
    Location
    Wheelersburg, Ohio
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    17

    Need to know if I add chlorine when My CYA is 20. 0 chlorine. opened pool today.

    Thought I had to get my cya up first. Do I add chlorine or wait.
    In ground, oval shape, 18'X36',23,800 gal., vinyl liner, 1.5HP Hayward,super pump, Hayward tank/ sand filter/ TFP 100 Test Kit

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    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
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    18,768

    Re: Need to know if I add chlorine when My CYA is 20. 0 chlorine. opened pool today.

    Quote Originally Posted by Bevly View Post
    Thought I had to get my cya up first. Do I add chlorine or wait.
    Your pool needs to ALWAYS have above the minimum FC level for your CYA. Whatever that CYA level is. Even if it's zero, you need some chlorine in the water. Chart
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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