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Thread: What is this?....Comes off in sheets.

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    What is this?....Comes off in sheets.

    Hello and thanks in advance to all responders. I have been fighting a type of algae that is brown/green in color. It attaches to the side and bottom. When I brush it, it literally comes off in sheets and clumps. Most of it comes off fairly easily with the brush although in some spots it needs vigorous scrubbing to get it off.

    I suspect that it is a variety of mustard algae...that being the case is there a "nuclear" option to get rid of it?

    Thanks again...Rodge

    Pool Stats:

    In ground approx 22000 gal free form design
    Gunnite with Pebbletec finish
    Sand filter with a Multicyclone prefilter
    Copper ion and Titanium Ecosmarte sanitation.... (used with good results for 10 years)

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: What is this?....Comes off in sheets.

    Welcome to TFP!

    That is certainly algae, but it doesn't sound like mustard algae. Regardless, chlorine will kill it.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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