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Thread: How long for CYA to dissolve?

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    How long for CYA to dissolve?

    I just put about 3 lbs of CYA in the sock and dropped it in the skimmer. How long till the big ball of CYA dissolves? How long till I should do a test for CYA in my water?
    16 X 32 Vinyl. Hayward aqua rite salt system, T -15 cell. Hayward H250 gas heater, Hayward 1HP superpump.

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    Butterfly's Avatar
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    Re: How long for CYA to dissolve?

    Quote Originally Posted by jonmar
    I just put about 3 lbs of CYA in the sock and dropped it in the skimmer. How long till the big ball of CYA dissolves? How long till I should do a test for CYA in my water?
    That will depend on your water flow. Maybe one day, maybe two? Don't test for your CYA until about a week after it has dissolved.
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    TizMe's Avatar
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    Re: How long for CYA to dissolve?

    mine usually dissolves in a day ....
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    Re: How long for CYA to dissolve?

    I recently put a few pounds of granular stabilizer in a fine mesh bag and left it in my skimmer. It took almost two weeks to completely dissolve, in spite of a seemingly vigorous flow that had it tumbling around in there for more than six hours a day.
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    Re: How long for CYA to dissolve?

    general rule of thumb is put it in and test it a week later.

    Don't even worry about it until the week has passed.

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    frustratedpoolmom's Avatar
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    Re: How long for CYA to dissolve?

    I recently added some. I put the sock in the skimmer first, but since I have my pump on low and only 50% of the water goes thru the skimmer, it wasn't dissolving very much after 24 hours. So I moved it to the return, and it dissolved within the next 24, the water flow by the return was much better.

    Ditto, wait a week to test, but after 24 hours after it's done dissolving, assume it's in there. So if you added enough to target 50, assume your CYA level is 50 and adjust your FC levels according to the CYA chart.
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