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Thread: adding solid CYA to the pool

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    adding solid CYA to the pool

    I have read that if you add solid CYA in a sock through the skimmer, it takes about a week before you will get a good New CYA reading. I have also read where folks recommend putting the sock filled with CYA in front of a return jet in the pool......when it is done this way do you still have to wait about a week to get a new good CYA reading, if not about how long......Thanks, John
    16100 gallon rectangle pool built in 1984 including a 5' X 5'x 3' Spa, Diamond Brite in year 2000, Non-SWG Pool

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    Butterfly's Avatar
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    Re: adding solid CYA to the pool

    It takes about the same amount of time.

    Solid (actually granuals/powder) will slowly dissolve in a matter of days. But, how many days depends on your equipment, run time, water temp, etc (all those danged variables). It could take up to a week for it to fully dissolve and test correctly.

    That's why we recommend "about a week" so that you don't test too early and waste reagents unnecessarily.

    btw, we recommend hanging the sock in front of a return so that you don't take a chance on blocking the skimmer
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    Re: adding solid CYA to the pool

    Many thanks for the explanation, Now I understand why I read the two different ways of adding the solid CYA.

    Should I still run the skimmer pump 24 hours while adding the CYA in front of the return jet the first day or is about 12 hours fine before returning to running it 6 hours daily? John
    16100 gallon rectangle pool built in 1984 including a 5' X 5'x 3' Spa, Diamond Brite in year 2000, Non-SWG Pool

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    Re: adding solid CYA to the pool

    The more water that flows over the CYA, the faster it will dissolve and show up in your test results. I would run the pump 24/7 until the CYA is dissolved.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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    Re: adding solid CYA to the pool

    If I understand you correctly, then once the CYA has desolved in the sock at the return jet , then if I run the pump another 12 hours, I'm then OK to return back to my usual 6 hours a day. Correct. John
    16100 gallon rectangle pool built in 1984 including a 5' X 5'x 3' Spa, Diamond Brite in year 2000, Non-SWG Pool

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    Re: adding solid CYA to the pool

    I can dissolve almost 2 pounds in summer with it in a pantyhose lying in the skimmer basket in half a day easily. Just don't backwash for a few days.
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    Re: adding solid CYA to the pool

    So how long do you run your pump after it's all resolved? John
    16100 gallon rectangle pool built in 1984 including a 5' X 5'x 3' Spa, Diamond Brite in year 2000, Non-SWG Pool

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    Re: adding solid CYA to the pool

    Run your pool as long as it takes to keep it clean....it's a learning experience. Generally, we suggest to start with twelve hours if the pool is new to you and then get shorter and shorter until you notice it's not keeping your pool at the appropriate cleanliness.

    My pool is about 10 hours in the middle of the summer....much lower in the dead of winter.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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    Re: adding solid CYA to the pool

    Many thanks, that helps, John
    16100 gallon rectangle pool built in 1984 including a 5' X 5'x 3' Spa, Diamond Brite in year 2000, Non-SWG Pool

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    Re: adding solid CYA to the pool

    So is solid CYA the best way to go or liquid(prob more $$)? I run my pump about 10 hrs a day,I was planning on running the pump 24 hr after adding CYA
    2013 11k gal freeform, in-ground, Gunite
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    Re: adding solid CYA to the pool

    I think liquid is about triple the cost of the granules.

    It has the advantages of being testable within a few hours and pretty hassle free to dose your pool.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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    Re: adding solid CYA to the pool

    That's what I was thinking. I'm in no hurry
    2013 11k gal freeform, in-ground, Gunite
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    Re: adding solid CYA to the pool

    It is really hard to justify the cost of liquid Cya, and there is no hurry to test it. Just give it the time to dissolve and test.
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