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Thread: Stained concrete? Anything I can do?

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    Join Date
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    Stained concrete? Anything I can do?

    So, a few weeks ago I posted about some small red circles at the bottom of my pool. I used some Lo N Slo in a sock and it cleaned them right up. Sometime in the last few weeks these spots (shown in picture below) are on my concrete. I'm assuming this came from when I was walking away with the sock some of the chemicals got on the concrete. I could be completely wrong but it seems like it was about that time that we noticed these. I've tried to wash it with a hose and it doesn't come off. I didn't know if there is anything I can do. This concrete is only 2 months old. I've attached some pictures.
    Attached Images Attached Images
    30,200 gallon. IG - 20 by 46". Vinyl liner. Sand filter.
    Pentair Intelliflo Variable Speed Pump.
    Built April/May 2013.
    Empress Royal Spa

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    Mod Squad Bama Rambler's Avatar
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    Re: Stained concrete? Anything I can do?

    Lo N Slo is acid so if it dripped on the deck it has permanently etched it. About the only thing you can do is acid wash the whole deck, and then it's probably not going to be perfect. You could try power washing it first to see if that helps it.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    Re: Stained concrete? Anything I can do?

    Quote Originally Posted by Bama Rambler
    Lo N Slo is acid so if it dripped on the deck it has permanently etched it. About the only thing you can do is acid wash the whole deck, and then it's probably not going to be perfect. You could try power washing it first to see if that helps it.
    Darn! I was afraid of that. I guess, learn from your mistakes but this was a big one .


    30,200 gallon. IG - 20 by 46". Vinyl liner. Sand filter.
    Pentair Intelliflo Variable Speed Pump.
    Built April/May 2013.
    Empress Royal Spa

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    techguy's Avatar
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    Re: Stained concrete? Anything I can do?

    Looks likes it is time to stain the deck!

    Sorry to see the spots on your deck. Good luck.
    -- Guy --
    10K gallons in 21' Round 52 inch wall Aqualeader AG, Hayward Power Flow LX 1.5 HP pump motor, Hayward Perflex EC50AC DE filter w/Cellulose, Wide mouth skimmer, 2013 new Diver Dan (craigslist) to replace the faded old Hayward AquaBug. TF-100

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    chiefwej's Avatar
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    Re: Stained concrete? Anything I can do?

    Do you have any interest in acrylic coating or stained concrete?
    chiefwej
    Tucson, AZ
    16x36 rectangular (19k) Pebble Tec play pool/spa, Pentair Intelliflo VS 011018, Super II 2hp (spa), Aqua Rite T-15 SWG, Pro Grid 60 DE, Hayward H400 & Heliocol Solar heating, A&A infloor system, fill water w/high CH and TA, 50 ppm borates,TF-100 test kit

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    Richard320's Avatar
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    Re: Stained concrete? Anything I can do?

    In a couple years it will be aged enough to disappear.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Stained concrete? Anything I can do?

    Can you feel a difference, or is it just the color?

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    CUTiger78's Avatar
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    Re: Stained concrete? Anything I can do?

    You could try powerwashing the whole area. It won't fix the etching, but it might even out the color.
    36K gallon 42X22 gunite/plaster kidney-shaped IG;
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    175K BTU LAARS Lite2 LG natural gas heater; Polaris 380;
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    Re: Stained concrete? Anything I can do?

    That deck is pretty dark looking; I bet those spots will darken up to match pretty quickly.
    Maryland
    18000 gallon plaster pool, Pentair Triton II sand filter, Purex Triton Minimax Plus 300 gas heater, 1.0 HP two-speed Pentair Superflo, Polaris 380
    Caldera Marino hot tub, 360 gallon

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