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Thread: How to calculate how many pucks raise CYA

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    How to calculate how many pucks raise CYA

    Always start your own thread when asking a question, rather than hijack another person's thread. Thanks, Butterfly

    I have a container of trichlor pucks left and need to raise my CYA. How can you calculate how many pucks to use in my automatic chlorinator to raise the CYA level. They are 85% chlorine. Mt Cya is at 35 and I want to raise it closer to 45 or 50. I am going through a lot of bleach this summer and didn't have that problem last summer when my CYA was at the higher level
    17x33 inground vinyl pool, 22,000 gallons, 1 1/2 hp hayward pump, Hayward systemII DE filter with chlorinator, north central pennsylvania, heater

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    Butterfly's Avatar
    Join Date
    May 2007
    South Carolina

    Re: How to calculate how many pucks raise CYA

    Use the Pool Calculator, link in my sig. After adding pool gallons at top, Scroll down to the "Effects of Adding Chemicals" section.
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

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