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Thread: New fill, test for CYA?

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    Join Date
    Aug 2013
    San Jose, CA

    New fill, test for CYA?

    This is a great site! I have been to pool school and have used BBB for a couple of months now. I just drained and refilled my pool due to high CYA. Is it necessary to test the CYA level in the new fill water before adding more? I didn't think so, but want to be sure.
    31,000 gal., DE, IG plaster, Pentair IntelliFlo VS
    Taylor K-2006 test kit

  2. Back To Top    #2

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: New fill, test for CYA?

    Fill water will have no CYA.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3
    Patrick_B's Avatar
    Join Date
    Jun 2011
    Midland TX

    Re: New fill, test for CYA?

    Welcome to TFP cbaker!

    No CYA in the fill water, so you will have to add it. Check out Pool School and start with the ABC's of Pool Chemistry. Enjoy the forum and ask questions as you have them. We are happy to help.
    TFP Moderator
    Essential Links:
    ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
    28K Gal IG FreeForm, CLI Quartz, Pentair 36"SF & VS Pump, Dolphin M5, Rheem

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