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Thread: How much chlorine if inceasing my cya?

  1. Back To Top    #1

    Join Date
    Apr 2010
    Central NJ

    How much chlorine if inceasing my cya?

    I'm increasing my cya from 20 to 50, and from what I've read it could take a few days for the cya to register. In the meantime, what should my chlorine target be? Should it be for a cya of 20, 50 or what ever the cya test results are?
    23K gallon, IG, Vinyl, Hayward DE-3600 Filter, Raypak 406A Heater, Hayward 1.5HP SP2610X15 pump aka AO Smith UST1152, TF-100 Test Kit

  2. Back To Top    #2
    Butterfly's Avatar
    Join Date
    May 2007
    South Carolina

    Re: How much chlorine if inceasing my cya?

    24 hours after your CYA dissolves, assume it is there and increase FC accordingly.
    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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