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Thread: Another black algae question?

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    Another black algae question?

    I have a 14000 gallon plaster pool with a 3m quartz bottom and tile edge.

    The Black algae is taking over.

    I will be draining my pool because the water needs to be changed, but If I drain my pool, will the black algae die? I would assume that since there is no water, once I scrape the "head" off with a Chlorine tablet, there will be nothing to feed off of therefore it will die.

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    Mod Squad Bama Rambler's Avatar
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    Jun 2009
    SouthWest Alabama

    Re: Another black algae question?

    Exactly why are you draining it? What chemical has gotten so far out of control that you have to drain it (CH, CYA, etc).

    Draining it won't necessarily kill the black algae but once it's drained you can scrub it well with a bleach solution making sure to scrub the heads off and that will kill it. Once you get rid of it you will have to maintain the pool correctly or it will come back. Read Pool School and the forum to learn how to do that.
    Dave J. TFP Moderator
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    Re: Another black algae question?

    Honestly, I want to drain because I was out of town for a few months and the pool got out of hand. The kids and wife basically threw their hands up at it and did not care and let it go. Therefore the green algae is now all over and now starting to be taken over by black. I planning on draining, a good chlorine scrub, wire brushes all over the black algae, and then starting with fresh water and new chemicals, and a clean filter (im using the tall hayward DE filter "grids") I also have a few leaks on the pump piping that I need to fix.

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    Re: Another black algae question?

    If your determined to drain it, it will be a lot easier to clean it as the pool drains while the finish is still wet rather than letting the algea dry on the plaster.

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    Re: Another black algae question?

    Thanks for that Idea, I plan on using a diluted liquid chlorine mix as the level drops. What do you think?

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