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Thread: Is this yellow algae...?

  1. #1
    Junior Member
    Join Date
    Jun 2012

    Is this yellow algae...?

    Or something else?

    It doesn't seem gritty. When it first appeared, water was cloudy/green and I shocked the pool to the right chlorine levels given my CYA. Water has been clear since.

    But it keeps coming back. Pretty baffled here.

  2. #2
    Mod Squad Butterfly's Avatar
    Join Date
    May 2007
    South Carolina

    Re: Is this yellow algae...?

    Post a full set of test results and tell us how you got them.

    Welcome to the forum
    TFP Moderator -TF100 Test Kit - TF100 TestKit YouTube Channel- PoolMath- Pool School -
    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.
    ~Do at least one thing every day that makes you happy.~

  3. #3
    Senior Member
    Join Date
    Nov 2008

    Re: Is this yellow algae...?

    What happens when you brush it?
    23,000 gallon in ground pool with rock waterfall and spillover spa, Aqualink control system, Polaris 380 cleaner, Purex Triton Clean&Clear Plus cartridge filter. Located in The Woodlands, Texas.

    Pool owner since Nov 2008, Trouble Free since April 2009. Happy to help when I can.

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