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Thread: Black algae?

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    Join Date
    Apr 2007

    Black algae?

    We noticed thin black streaks on the sides and bottom of the pool. At first I thought it was the vacuum leaving marks behind. I'm not so sure of that anymore. I scrubbed some of the streaks with a wire brush and then rubbed a chlorine puck on each but they are still there. Does anyone have pictures of black algae? And solutions for ridding it. Thanks.

    22X44 freeform gunite with DE filter (44,500 gallons), 4 deck jets

  2. Back To Top    #2
    Black algae is usually in the form of circular patches that start small (about the size of a coin) and get bigger with time. It takes a long time of too low a chlorine for it to start and is really the sign of pool pool maintenance over a perioud of weeks or months.

  3. Back To Top    #3
    gonefishin's Avatar
    Join Date
    Apr 2007
    Joliet, Il.
    Could you take a picture and post it in this thread?


    33' Aqua-Leader AGP
    Hayward cartridge filter and IntelliFlo VS pump.
    Solar Heat coming ; used to own Aqua-Cal HeatWave 100k (HeatPump)
    Aqua-Rite t-15 SWG

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