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Thread: CYA not reading now?

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    Join Date
    May 2013
    Chandler Arizona

    CYA not reading now?

    I set up intex 18 x 9 approx 4500 gallons. Added salt(120 LBS) and CYA( 1/2 GALLON LIQUID). Tested CYA about a week into setup. It was a little low. Added about 8 oz more CYA. Now I read it yesterday, Its not reading at all? I'm using the TF-100. Could heat of the day affect the reading its like 114 degrees out side pool water is like 102.
    Intex Ultra Frame 18 x 9 x 52 rectangle. 4545 Gallons.
    12 in Krystal Clear™ Sand Filter Pump w/ GFCI.
    Krystal Clear Saltwater System™ w/ GFCI.
    TF-100 Taylor testing.
    K-1000 Taylor testing.

  2. Back To Top    #2
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: CYA not reading now?

    You're saying that the view tube remains completely clear even when full to the top?
    I'm not being facetious, just want to make sure. You are mixing half pool water and half R-0013 aren't you?

    I've heard of cold affecting the reading, but never heat.
    Go ahead and post a full set of test results.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  3. Back To Top    #3
    Butterfly's Avatar
    Join Date
    May 2007
    South Carolina

    Re: CYA not reading now?

    What is the % cyanuric acid listed in the ingredients on the label?

    I'm just curious because we know that there is some 50% strength out there in the granular. Maybe they have the 50% strength in the liquid, too?
    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.

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