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Thread: SHEETS of green algae

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    SHEETS of green algae

    I have a sheet of carpet-like green algae covering the bottom of my pool! It is disgusting with little bubbles. My water is CLEAR and one the sheets are lifted the bottom is clear. It is so strange! One pool guy I talked to said he's only seen it one other time in 31 years. I've been told the only thing I can do is slowly hand vacuum it up. What is the most cost and time efficient solution? I have a real mess on my hands. Thanks.

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    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: SHEETS of green algae


    The best solution would be manual vacuuming with the multiport valve set on "waste." But that may not be possible; it depends on your equipment. Next best would be manual vacuuming and constant backwashing. You want to sneak up on the debris and let the vacuum pull it in ahead of itself, so it doesn't stir up so much. The more crud you can physically remove, the less you'll have to kill with bleach.

    Then you'll need to SLAM the pool. That requires a special chlorine tester. It's mentioned in that article as one of the prerequisites.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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