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Thread: treating a copper stain on a vinyl pool

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    Join Date
    May 2012
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    Clayton, Ga.
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    2

    treating a copper stain on a vinyl pool

    This is my third year of pool ownership and I currently have an ionizer system. The system has worked great however when I opened the pool this year the entire pool was stained light brown. The water was clear ph6.3 ta100 ch80 ion level 0.5 to 0.6 which is high. During the first week it was open I adjusted the water to ph7 ta100 ion0.3to0.4 ch160. I have talked to the ionizer people and they have stated because the ions were run to high for closing the pool and the ch being way low this caused the staining. Upon which I ordered a Jacks stain ID kit and tested. I had to lower ph and ta for the test. It now reads ph6.3 ta63 ion 0.4 and ch160. Also the Ionizer has been off since I first opened the pool May 1st. The ID came back copper (of course). The best method that worked was to use their #3packet o2shock then #2 copper packet to remove the stain. Now before I spend a lot of money on their products, I wanted to get all of your advice. I was lucky enough to find this forum searching for answers. My pool is inground with vinyl liner, Heyward sand filter, heyward 1 1/2hp superpump,carefreeclearwater ionizer, and holds roughly 20,000gal. thanks
    20,000gal.,heyward sand filter,heyward 1 1/2hpsuperpump,carefree clearwater ionizer,vinyl lined

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    Mod Squad Bama Rambler's Avatar
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    Jun 2009
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    SouthWest Alabama
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    Re: treating a copper stain on a vinyl pool

    Welcome to TFP.
    Don't take the following as harsh or brow beating. We all have to learn lifes lessons.

    Jack's is probably going to be your best bet. You could try some vitamin C tablets on it to see if that removes it and if it does you could perform an AA (Ascorbic Acid) treatment. If it doesn't than you'll have to the Jack's and follow the directions precisely.

    Copper stains can be very hard to impossible to remove once they're set in. You have described a perfect example of why we don't recommend ionizers. It's likely going to cost you a good chunk of money and a good bit of work to get the stains removed and unless you stop using the ionizer you will have to battle this again.
    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
    Pool School ----- Pool Math ----- TF-Test Kit

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    Join Date
    May 2012
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    Clayton, Ga.
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    2

    Re: treating a copper stain on a vinyl pool

    Thanks Bama. I felt that would be the answer. All in all the ionizer has been great, the problem was me running the ions up to high to close the pool and not fully understanding exactly how all the chemistry works together. I'll try to post results to my problem so maybe it will help someone else with this problem.
    20,000gal.,heyward sand filter,heyward 1 1/2hpsuperpump,carefree clearwater ionizer,vinyl lined

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    Join Date
    Apr 2009
    Location
    Burlington, ON, Canada
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    337

    Re: treating a copper stain on a vinyl pool

    Quote Originally Posted by mikeinclayton
    Thanks Bama. I felt that would be the answer. All in all the ionizer has been great, the problem was me running the ions up to high to close the pool and not fully understanding exactly how all the chemistry works together. I'll try to post results to my problem so maybe it will help someone else with this problem.
    Again, don't take this the wrong way, but the ionizer is adding copper to your pool whether it's run too high or not the end result is copper in your water. If you research here you will see that the proper chlorine level relative to your cya level is all that's needed for keeping your water safe and you won't have to ever worry about staining.
    16x28 Roman, 55000 litres, salt water, Zodiac Duoclear 130 (mineral cartridge removed!!!), inground, vinyl liner
    Hayward Tri-star VS900 (1.85 HP) pump, Hayward C3030 cartridge filter
    Nine Techno Solis 4x10 solar panels, Jandy LX 250 natural gas heater
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