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Thread: Noob AGP numbers

  1. Back To Top    #1

    Join Date
    May 2016
    Baton Rouge, Louisiana

    Noob AGP numbers

    Hi, and thanks in advance.
    This is the 2nd season for our 18' round, 48" deep above ground pool, with paper filter. I let it get pretty nasty before replacing the water and cleaning the pool a few weeks ago. I have only recently begun testing, and I want to make sure I am on the right track. This morning:
    5.5 FC
    7.2 PH
    170 TA
    20 CH
    20 CYA

    Does anything stick out here? In pool math, I use a depth of 3.8 feet. I have added muriatic acid a couple times to lower ph, and I added stabilizer about 4 days ago (so I'm not sure about the accuracy of the cya reading). I recently purchased a pool vac to help with the "fine" debris. My water is a bit cloudy right now.

  2. Back To Top    #2

    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Noob AGP numbers

    Welcome to the forum.

    Add enough CYA to get to 50 ppm. Your pool will consume a LOT less bleach.

    FC, TA and pH are all fine.

    20 CH is surprisingly low but it doesn't matter much in a vinyl pool. I would probably raise CH to around 250 but it can wait a few weeks.

    Keep the cold ones close by and go swimming!
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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