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Thread: Can leslies black algae killer ruin plaster?

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    Troy992's Avatar
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    Can leslies black algae killer ruin plaster?

    I have a plaster pool and used leslies black algae killer and think I used too much. what to do?
    16' X 32' / 3.5' - 5' - 4' / 13,000 Gallon In-Ground - Plaster with SWG. Hayward SwimClear 425 Quad-Cluster Cartridge filter, Hayward Tristar 2HP Dual speed EE pump, Hayward Aqua Rite salt system with T-9cell, 2" plumbing, 5 return lines, 2 Skimmers, 2 floor drains, Flagstone Coping, Intermatic Multipurpose Control (P1353ME) Houston, Tx.

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    duraleigh's Avatar
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    Re: Can leslies black algae killer ruin plaster?

    1. I have no idea what's in The Leslies product so can't answer your question. What ingredients does it list?

    2. What symptoms appear that make you think you have damaged your finish?

    3. Have you confirmed it really is black algae? It usually takes a lot of neglect for a long period of time to give black algae a foothold.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Kiss4aFrog's Avatar
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    Re: Can leslies black algae killer ruin plaster?

    Welcome to the forum.

    How much did you use and how much according to the directions (15.6 oz ??) should you have used for a 13K pool

    http://www.lesliespool.com/leslies-b...gae-killer.htm

    Here is what is in it:
    http://www.kellysolutions.com/erenew...3_55_54_PM.pdf
    '70s IG Vinyl 32K gal, Lazy L, Hayward SuperPump 1.5hp 120V, S240 Sand Filter W/DE
    Solar Blanket, Well Water, Borax Added, TF-100 tester. ? too cold
    1979, 275gal Conway Emerald Spa P-100-2, ES-2 Spa Pack, bromine floater, indoor
    TF-100, Best test kit - TFTestkits.net
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    Kiss4aFrog's Avatar
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    Re: Can leslies black algae killer ruin plaster?

    And I guess the next question is with your equipment and a SWG how did it get started and wouldn't SLAMing it have been a better choice ??

    SLAM procedure: http://www.troublefreepool.com/conte...tain-shockingl
    '70s IG Vinyl 32K gal, Lazy L, Hayward SuperPump 1.5hp 120V, S240 Sand Filter W/DE
    Solar Blanket, Well Water, Borax Added, TF-100 tester. ? too cold
    1979, 275gal Conway Emerald Spa P-100-2, ES-2 Spa Pack, bromine floater, indoor
    TF-100, Best test kit - TFTestkits.net
    Please help keep the lights on, become a TFP Supporter!

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    Mod Squad zea3's Avatar
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    Re: Can leslies black algae killer ruin plaster?

    It contains copper, so there is a possibility of copper staining, but that is reversible. Please tell us how much you used and post your most current set of test results.
    TFP Moderator
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    Vogue 21' round AG, Pentair 1 hp 2 speed pump, 36 sq ft DE filter, Hayward S180T 150# sand filter, Houston, Texas
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