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Thread: NO CYA?! Is that right or am I wrong?

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    NO CYA?! Is that right or am I wrong?

    Hi All,
    Love the site, recommended to many others already. New pool owner and new to TFP.
    Big blue bubble kind but we hope to enjoy for a season or two. Finished filling this week with well water, crystal clear for 4 days and still is. Began test with basic kit and then the TF-100, after it arrived. First tests registered low-0.
    Turned on filter pump and then added bleach and borax last night. This am, still crystal clear Test results:
    FC 1
    CC 0
    TC .5
    pH 7.2
    TA 20
    CYA 0
    water temp 75 degrees
    outside 85-95, pool stays partially shaded all day.
    No CYA could that be possible? or did I miss something?
    Is it better to use borax, baking soda, or soda ash to raise TA and ph?
    Pool calulator says 3.2 oz of borax and 20 oz of bleach. What else do you recommend?
    Did I ask too many different questions in one thread? Sorry new to posting also
    cpdpnsc-columbia sc
    well H2O (good quality)
    AG3400g intex,vinyl,cartrige filter, 1000gph

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    reebok's Avatar
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    Apr 2009
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    Lakeland, FL
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    Re: NO CYA?! Is that right or am I wrong?

    cya doesn't come in water. you have to add it.
    fc+cc=tc you went wrong somewhere there.
    there is a thread about the ta/ph going on now I'll see if I can find it. your ph is ok though.
    if I were you, I would add baking soda for the TA and not worry about the ph.
    pool-school/recommended_pool_chemicals
    16x32 21,000 gallon in-ground exposed aggregate, 1.5hp pump, 120 sqft catridge filter, birdcage, solar panels, aquavac tigershark qc robot.

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    JasonLion's Avatar
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    May 2007
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    Re: NO CYA?! Is that right or am I wrong?

    You want to use baking soda to raise the TA level. I would add 3 lbs of baking soda.

    You also want to add some CYA/stabilizer/conditioner to raise the CYA level, about 1.5 lbs of the granular CYA.

    You should also add some chlorine this evening, about 2 cups of 6% bleach will do it.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: NO CYA?! Is that right or am I wrong?

    Thanks for the help. Is it better to add the 99% liquid CYA or the granular?

    I know (from reading here) that the granular will take about a week to dissolve thoroughly in the system, before I should test CYA again. Can you swim as it dissolves? I would assume that I would be using the sock or hose, delivery system.
    What about when using the liquid? How long do I need to wait before testing?
    How long after adding liquid CYA before it is safe to swim?
    cpdpnsc-columbia sc
    well H2O (good quality)
    AG3400g intex,vinyl,cartrige filter, 1000gph

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    reebok's Avatar
    Join Date
    Apr 2009
    Location
    Lakeland, FL
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    Re: NO CYA?! Is that right or am I wrong?

    you can swim after addition (while dissolving). liquid is a lot more expensive but shows up on tests immediately.
    16x32 21,000 gallon in-ground exposed aggregate, 1.5hp pump, 120 sqft catridge filter, birdcage, solar panels, aquavac tigershark qc robot.

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