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Thread: New Pool owner w/ algae issue

  1. Back To Top    #1

    Join Date
    Jun 2016
    Bel Air, Maryland

    New Pool owner w/ algae issue

    Hello everyone, I just purchased a house with a 27,500 gal concrete in ground pool. While being a first time home owner, I'm also a first time pool owner as well. I had the pool inspected by a local pool company here in Maryland. Everything looked good. The only issue I'm having is that I have some type of algae on my pool walls and floor. I've vigorously brushed the walls and the floor and the stuff won't seem to budge, but I can wipe it off with my hands, and also a rag. The color is like a yellowish brown, I've been told it maybe mustard algae, but that's just a pool technician guessing over the phone. All the videos I've watched on treating mustard algae, it shows the algae brushing off pool walls effortlessly, while this stuff won't budge with a brush, only by hand or with a rag.

    I'm just looking for insight on if anyone else has ever come across something like this and what did they do to treat it.

  2. Back To Top    #2
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    DFW, TX

    Re: New Pool owner w/ algae issue

    Welcome to TFP!

    This is how we kill algae, Pool School - SLAM - Shock Level And Maintain. After you pass the SLAM, then follow this for the mustard algae, Pool School - Mustard Algae

    You will need one of the recommended test kits, Pool School - Test Kits Compared. I use the TF-100 from It is the best value and gives you the most tests for the money.

    Start here in Pool School to learn how we take care of pools.
    Pool School - ABCs of Pool Water Chemistry
    Then head here
    Pool School - Getting Started
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