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Thread: cya added with chlorine tablets

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    cya added with chlorine tablets

    is there a way to figure how much cya is added by using triclor pucks?
    24,000 gallon ig fiberglass pool
    1 hp hayward pump
    hayward sand filter (250 lb)
    madisonville, ky

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    Join Date
    Mar 2009
    Location
    Huntsville, AL
    Posts
    156

    Re: cya added with chlorine tablets

    You can use the pool calculator. Enter your pool volume at the top and then scroll down to the bottom of the page and use the section for calculating the effects of adding chemicals:
    http://www.poolcalculator.com/
    27K gal, IG vinyl, 1.5 HP pump, 24" sand filter, Goldline Aqua Plus SWG

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    Re: cya added with chlorine tablets

    Trichlor pucks are usually about 7 ounces each. Each puck adds the following amounts:

    Pool volume......Cyanuric acid added...........Chlorine added
    In gallons........ by (1) 3-inch tab (ppm)...... per tab (ppm)

    10,000..............3.0................................4.8
    15,000..............2.0................................3.2
    20,000..............1.5................................2.4
    25,000..............1.2................................1.9
    30,000..............1.0................................1.6

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    Join Date
    Jan 2009
    Location
    Cupertino, CA
    Posts
    1,966

    Re: cya added with chlorine tablets

    Or, trichlor adds 6ppm CYA for every 10ppm FC.
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

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    Re: cya added with chlorine tablets

    Quote Originally Posted by PaulR
    Or, trichlor adds 6ppm CYA for every 10ppm FC.
    --paulr
    That's a good rule if you are adding a dose of chlorine all at once, but most people don't think about ppm chlorine added when using tabs. They count the number of tabs used, and use tabs to maintain a certain level.

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    Join Date
    Jan 2009
    Location
    Cupertino, CA
    Posts
    1,966

    Re: cya added with chlorine tablets

    Hm, true, just thought I'd point out the relationship. Not clear whether diverman57 is a regular tab user, or somebody like me using N tabs to get CYA where it wants to be. I've found asking the Pool Calculator to tell me how much CYA from 10 tabs is a good starting point.
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

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