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Thread: How to remove and prevent these persistent stains

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    Water_man's Avatar
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    How to remove and prevent these persistent stains

    Near the deep end of my pool there’s a big oak tree. When I opened the pool at the beginning of the season there was in the deep end's bottom some tree debris, including leaves and acorns. At the bottom nearby I found these stains which wouldn’t be removed with shocking or scraping. I wonder how to remove them and what are they made of. This year the amount f acorns is incredible because of the wet summer we had. I’m sure that when I will be closing soon, there will be no way to prevent acorns from falling in and it’d be too hard to fish them out.





    Typical water chemistry:

    CYA 30
    FC 2 - 2.5
    CC < 0.5
    pH 7.3 - 7.4
    TA 90
    CH 325
    borates 50 ppm
    This is my ticket for Heaven (when all's working..) :
    22k Gal gunite IGP, 38 SF Anthony DE filter, 1 HP Hayward Super Pump
    380k BTU Raypak Natural Gas Heater (Model RP405A) and solar cover
    8 gal Liquidator w/ 12% bleach, Dolphin Diagnostic Advantage robotic cleaner. 3800 ppm salt, 50 ppm borates.

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    frustratedpoolmom's Avatar
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    Re: How to remove and prevent these persistent stains

    If the stains are from acorns - try holding a trichlor tablet on them, rubbing them - see if they budge. If you are unsure what they are - try the vitamin C tablet the same way...see if they are metal.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    Water_man's Avatar
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    Re: How to remove and prevent these persistent stains

    I'm absolutely sure the stains are not metallic - their shape looks like an imprint of tree debris. I do have another long and wide stain near the central drain – it looks dark. Where do I get a big Vit C tablet?

    [attachment=0:1qzpwbje]03_4A_resize.jpg[/attachment:1qzpwbje]
    Attached Images Attached Images
    This is my ticket for Heaven (when all's working..) :
    22k Gal gunite IGP, 38 SF Anthony DE filter, 1 HP Hayward Super Pump
    380k BTU Raypak Natural Gas Heater (Model RP405A) and solar cover
    8 gal Liquidator w/ 12% bleach, Dolphin Diagnostic Advantage robotic cleaner. 3800 ppm salt, 50 ppm borates.

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    Shawnee, Kansas
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    Re: How to remove and prevent these persistent stains

    I have a large pin oak in my front yard which is constantly dropping accorns this time of year on my driveway. Each and every one leaves a brownish rusty spot, so that is more than likely your culprit. I know it is a pain, but I would get them out ASAP beacuse it seems I get new stains on my drive every day.
    Matt
    20,000 gallon, sand filter, IG vinyl

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    Re: How to remove and prevent these persistent stains

    Those stains are common from many tree droppings...including leaves.

    Prevention by early removal is the best way to handle them.

    If you get them, elevate your level of chlorine for as long as it takes to get them removed. Brushing will help altho the effect will not be immediate.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Water_man's Avatar
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    Re: How to remove and prevent these persistent stains

    Quote Originally Posted by duraleigh
    Those stains are common from many tree droppings...including leaves.

    Prevention by early removal is the best way to handle them.

    If you get them, elevate your level of chlorine for as long as it takes to get them removed. Brushing will help altho the effect will not be immediate.
    What about the long, dark stain near the drain? I inherited it with the pool.
    This is my ticket for Heaven (when all's working..) :
    22k Gal gunite IGP, 38 SF Anthony DE filter, 1 HP Hayward Super Pump
    380k BTU Raypak Natural Gas Heater (Model RP405A) and solar cover
    8 gal Liquidator w/ 12% bleach, Dolphin Diagnostic Advantage robotic cleaner. 3800 ppm salt, 50 ppm borates.

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    Re: How to remove and prevent these persistent stains

    What about the long, dark stain near the drain? I inherited it with the pool.
    I have no idea what that is.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    frustratedpoolmom's Avatar
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    Re: How to remove and prevent these persistent stains

    Try the methods I mentioned above on the stain. Could be a copper stain....
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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