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Thread: Cyanuric Acid question

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    Cyanuric Acid question

    I have zero CYA in my pool.
    I bought granulated CYA and put it in a sock in the skimmer and left the pool pump running as recommended in the TFP pool school.
    I noticed that the granules seemed to have hardly dissolved at all. They are completely submerged and the pump is running.
    Is this common?
    Do i need to keep the pump running untill all the cya is dissolved?
    Help please...I'm just getting my pool into balance and need to get some CYA in there.
    6600 gal IG concrete/gemcoat
    Fresh water
    1 HP motor
    StayRite PLM 100 system 2 filter
    full sun
    Treasure coast, Florida

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    Melt In The Sun's Avatar
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    Oct 2009
    Location
    Tucson, AZ
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    Re: Cyanuric Acid questio

    It takes a while, but goes faster if you squeeze the sock every now and then. If you really want to get CYA in there quickly, you can buy the liquid ($$) or use dichlor powder to chlorinate for a little while.

    I've always just dumped mine in the skimmer and let it get caught in the filter. That way I don't have to worry about how fast or slow it seems to dissolve.
    11,200 gal, Pebble-Tec; Tristar 2-speed 1hp - Swimclear 325 ft2 cart - SWG - A & A in-floor cleaner - Heat pump. For the poolside cooking, a Yoder Wichita and a Big Steel Keg!
    TF Test Kits -- PoolMath -- Pool School
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    Join Date
    Sep 2011
    Location
    Houston, TX
    Posts
    38

    Re: Cyanuric Acid question

    I was recently assured in another thread that there is no issue with the pump stopping with cya in the Skimmer.
    26600 Gallon | In Ground Plaster
    Sand Filter Hayward S310S 500 Lbs Sand 4.9 sqft | Pump Hayward RS1500 (1.5HP motor)

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    Re: Cyanuric Acid question

    thanks for the replies.
    I tried using a thinner sock and this morning it was practically empty, so I'm now confident that there is cya in the pool.
    Funny but it is barely registering. I used about a pound and a half for a 6600 gal pool...My rough estimates tell me that should be a level of about 15-20 ppm.
    I saw in the pool school that it can take a week for the cya to show in a test. I don't understand that, but it's easier to raise the level than it is to lower it, so I'm not going to add any more until a week has gone by from the original treatment.
    6600 gal IG concrete/gemcoat
    Fresh water
    1 HP motor
    StayRite PLM 100 system 2 filter
    full sun
    Treasure coast, Florida

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    Administrator Leebo's Avatar
    Join Date
    Jul 2011
    Location
    Eastern Ohio
    Posts
    6,605

    Re: Cyanuric Acid question

    Trust in that last statement. In 5 days or so you will see it showing up. Go with the number the pool calculator gave you for now for your FC levels. Don't bother testing for the next few days....it will show zero.

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