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Thread: Algae spots?

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    Join Date
    May 2014
    Location
    Saint Albans, WV
    Posts
    40

    Algae spots?

    I've noticed a couple spots on my liner on the bottom of my pool that are turning green :/. My chlorine is between 5-10, ph - 7.5 and my CYA is 50. Any advice. Im close to closing the pool up and don't want this to create a bigger problem next year. Any advice appreciated. Thanks!!!

    PS - i've just been putting in diver dave to cure the problem but they keep coming back.
    10.4K gallon 21' round Elixir AG
    Hayward 150lb Sand Filter/1.5 Hayward Pump/Hayward Diver Dave cleaner
    Pool installed 7/11/14. TF-100 Test Kit.

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    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Location
    Columbia, SC
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    8,495

    Re: Algae spots?

    You pool cleaner is not the solution to visible algae, a SLAM is. I would guess at some point you got below the recommended level of FC or your CYA is higher than you think.

    You should read the directions on SLAMing your pool in the How To section of Pool School and follow that procedure completely to the end.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    pwrstrk's Avatar
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    Aug 2012
    Location
    Elverson Pa.
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    4,758

    Algae spots?

    Any visible algae you need to follow the SLAM Process. Follow it to the T and it should go quickly.
    The reason for it could be poor circulation in that spot or your FC level dipped below your min for your CYA level which is 4. You got the right test kit so SLAM it 😎
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    Join Date
    May 2014
    Location
    Saint Albans, WV
    Posts
    40

    Re: Algae spots?

    My FC s 10 and my CC is zero. Still having a couple algae spots coming in. Do i need to just keep adding chlorine? I added over 400 oz of bleach like the chart said. Did i add it all too soon? Or not enough? Help!!!!!!
    10.4K gallon 21' round Elixir AG
    Hayward 150lb Sand Filter/1.5 Hayward Pump/Hayward Diver Dave cleaner
    Pool installed 7/11/14. TF-100 Test Kit.

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