Pool algae problem





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  1. #1
    Join Date
    Feb 2013
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    Boksburg
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    Default Pool algae problem

    Good day gents...
    I have 90 000L swimming pool...
    Stopped using the floaters about 3 months ago coz my pool always goes green or mirky...
    Now I buy 10kg of chloor granules every month & the pool gets about 6 cups every week...
    Water problem now sorted out & is crystal clear no problems on that
    Now I have this problem that green algae grows on the sides of the pool & I get black algae spots(ugly little buggers)
    What am I missing?

  2. #2
    Join Date
    Nov 2014
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    The Far East (...Boksburg)
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    Default Re: Pool algae problem

    Quote Originally Posted by neltf View Post
    Good day gents...
    I have 90 000L swimming pool...
    Stopped using the floaters about 3 months ago coz my pool always goes green or mirky...
    Now I buy 10kg of chloor granules every month & the pool gets about 6 cups every week...
    Water problem now sorted out & is crystal clear no problems on that
    Now I have this problem that green algae grows on the sides of the pool & I get black algae spots(ugly little buggers)
    What am I missing?
    Similar situation to you although I stopped with floaters years ago. We have marbelite pool and sides are very rough so algae can get a grip easily. Also find that more grows on the eastern side of the pool. Bottom and some edges smooth and nothing grows there.

    Are you checking chlorine / pH levels now and then too?

    Been thinking about emptying and sanding down, or paint (neighbours did and their pool looks great a year on), or remarbelite, or move to the sea.
    "Adventure is the distance between the present and the fulfillment of your dreams. How you navigate the in-between, is the great unknown."
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  3. #3
    Join Date
    Sep 2010
    Location
    Nelspruit
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    42
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    223

    Default Re: Pool algae problem

    i have a problem of green algea on side of marblelite pool, so sides quite rough. Small pool maybe 25000l. is there a product or way to shock the [email protected]%!!?t out of the water so that the algea will come loose? It really sticks so if I cant somehow get it to at least loosen up so I can brush it with stiff broom, I will have to put the snorkelling gear on and go down, or resurface which is expensive. Any tips/advise would be appreciated

  4. #4
    Join Date
    Dec 2009
    Location
    Gordon's Bay
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    Default Re: Pool algae problem

    check your ph and chlorine levels.

    in summer Chlorine just vanishes. you need at least 1ppm to keep algae away.

    most likely it needs a pool conditioner or algaecide then the correct Chlorine level maintained.

    I keep mine at 1ppm for the dogs sake - they will always drink from it, but it's more effort to keep it there than just nuking it to the standard 3ppm.

  5. #5
    Join Date
    Sep 2010
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    Nelspruit
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    Default Re: Pool algae problem

    So best bet is nuke it with chlorine, but will dead algae come off sides or stick?

  6. #6
    Join Date
    Oct 2006
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    CAPE TOWN ,SOUTH AFRICA
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    Default Re: Pool algae problem

    You will also find it easier to use a broom to sweep the loose algae off. But shock it or other stuff will work.
    Even with the correct PH and Chlorine levels, you can sometimes get some algae setting in.
    ORA
    -------------------------
    Ian

  7. #7
    Join Date
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    Default Re: Pool algae problem

    Quote Originally Posted by Kariba View Post
    So best bet is nuke it with chlorine, but will dead algae come off sides or stick?

    no, don't nuke it with chlorine

    use an algaecide , then keep the level correct.

    you only need to bomb it when the whole pool is green!

  8. #8
    Join Date
    Aug 2010
    Location
    Pretoria
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    56
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    429

    Default Re: Pool algae problem

    Same problem solved with pool magic. Never looked back

  9. #9
    Join Date
    Jul 2009
    Location
    Gauteng
    Age
    51
    Posts
    1,066

    Default Re: Pool algae problem

    I had horrible black algae. Pool guy treated it with peroxide and it was sorted. Now it is one bottle of algaecide every month to six weeks and 1/2 cup of chlorine per day. Full cup when it rains.
    I also have the problem that the wall surfaces are rough so I scrub twice a week with an algae brush.
    There is some green algae after I returned from holiday again. Seems an ongoing battle.

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  10. #10
    Join Date
    Feb 2013
    Location
    Boksburg
    Age
    36
    Posts
    2,320

    Default Re: Pool algae problem

    I hate those black algae growing on the sides, they are bastards to get rid of

  11. #11
    Join Date
    Apr 2017
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    PUMULA
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    58
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    310

    Default Re: Pool algae problem

    Hydrogen peroxide is a good method. the chlorine levels must be zero for it to work, or you are just wasting time.
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