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Thread: Stain on liner floor

  1. #1

    Stain on liner floor

    Hello,

    I am beginning my 6th season as a pool owner. This was the first time there was a softball sized orange/rust colored stain in the deep-end of the pool after I did my initial cleaning. My pool opened quite clean (it always does) with the exception of a few leaves and several worms and bugs. The water is always quite clean after 7 months of dormancy. This was the first time there was a “stain” though. This is in the deep end of the pool and brushing it has zero affect. I have yet to manually get close to the stain to try and clean it (water is only 62 degrees!) but I will try soon. However, I have a feeling it is going to be a stubborn stain. Any suggestions? Thanks!
    22,500 gal Lagoon shaped inground pool, vinyl liner, Hayward 4800 DE Filter, Hayward 1 HP pump, My Blue Pool Heat Pump, My Blue Pool SWG, My Blue Pool Aquabot, Hebron, CT

  2. #2
    Administrator JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
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    31,194

    Re: Stain on liner floor

    Try placing a vitamin C tablet on the stain and see if that does anything.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    TFP Admin. Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. #3

    Re: Stain on liner floor

    Worked like a charm. Thank you!
    22,500 gal Lagoon shaped inground pool, vinyl liner, Hayward 4800 DE Filter, Hayward 1 HP pump, My Blue Pool Heat Pump, My Blue Pool SWG, My Blue Pool Aquabot, Hebron, CT

  4. #4
    Administrator JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    31,194

    Re: Stain on liner floor

    That means there is iron in the water. You might want to use some sequestrant reguarly to prevent stains from reappearing later.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    TFP Admin. Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  5. #5

    Re: Stain on liner floor

    OK- Thanks! What is sequestrant? I have never added that before. Do you have tips on how often/how much to add over time and where to buy it?
    22,500 gal Lagoon shaped inground pool, vinyl liner, Hayward 4800 DE Filter, Hayward 1 HP pump, My Blue Pool Heat Pump, My Blue Pool SWG, My Blue Pool Aquabot, Hebron, CT

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