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Thread: Adding CYA - Little help please

  1. Back To Top    #1

    Join Date
    May 2010
    Location
    Lehigh Valley, Pennsylvania
    Posts
    71

    Adding CYA - Little help please

    Getting everything balanced. Looks like I will need to add CYA. Test results as follows:
    FC - 3
    pH - 7.6
    TA - 60
    CYA - 20

    Pool is in direct sunlight all day. Typically, I have been adding about 1/2 jug of bleach per day. After the winter, this CYA level is the lowest I have ever seen it and it seems adding CYA (especially given the direct sunlight) is needed. Still a relatively new pool owner and not having done this before, I turn to my friends at TFP for advice. What product is recommended to increase CYA, what would you recommend for the level (I saw pool school indicates 30-50 for a vinyl pool with bleach) and how should I add it? Any thoughts on where to purchase are appreciated also. I've read about the sock in front of a return or in a basket. Not to be ignorant, but what is the "sock"?

    Thanks for your help!
    Rob
    25K gal vinyl inground, 1HP Hayward Pump, Hayward DE 4820 Filter

  2. Back To Top    #2
    Butterfly's Avatar
    Join Date
    May 2007
    Location
    South Carolina
    Posts
    10,045

    Re: Adding CYA - Little help please

    CYA (cyanuric acid) is also called/sold as Stabilizer or Conditioner. You can buy it at most Walmarts and big box stores and pool stores.

    The "sock" is just an old sock, (the kind you wear on your feet ) but with NO HOLES!
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  3. Back To Top    #3
    Butterfly's Avatar
    Join Date
    May 2007
    Location
    South Carolina
    Posts
    10,045

    Re: Adding CYA - Little help please

    I recommend you shoot for a CYA of 40. Wait a week, retest and adjust up to 50.
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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