Above Ground-Liner Stains

[aylad]

Before anybody can venture a guess as to what they are, we need to have an idea of what has been put into the pool. When you tried scrubbing them, did you try a baking soda paste? Have you tried rubbing it with a vitamin C tablet to see if it's maybe metal staining?

If you can post a list of your water test results, along with a list of what has been added to the pool, it might help us help you a little better....

[hatsoff389]

Silly me. I'm usually good at researching problems, but instead I went to my local pool store and listened to them. When I took the cover off, the ph, and alkalinity were both low. No sign of chlorine either, but the pool was clear and free of algae. I put in ph increase yesterday, as well as alkalinity powder. I also added two pounds of shock. The pool is an 18 round. Today, I tested it and the readings were ph 7.8, free chlorine was 0, alkalinity was 120, and ppm stabilizer was 30-50. This was using dip strips. I know some people don't like these test strips but they have never failed me as of yet.

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I have not tried either baking soda or vitamin c. Should the filter be running during this treatment of sparkle conquest?

Thanks!

[aylad]

I have no idea what sparkle conquest is, so I can't advise you there. I do know that if your stabilizer is 30-50 ppm (which I doubt--I'm one of those who absolutely distrusts test strips) and you put in 2 pounds of shock but now have zero chlorine, that you're probably fighting something in the water, and I'm guessing it's the sparkle conquest. So...you'll find that our advice here often differs much from the pool store's, and that people who try to follow advice from both us and the pool store end up frustrated. Because this is a busy time of year and we're struggling to keep up with posts from folks who follow the advice that we give, I'm going to ask you to choose one or the other--so we don't waste your time and energy trying to help clear up a pool with conflicting advice from other places.

Thanks

Janet

[hatsoff389]

I signed up on the forum to get advice from the people on the forum. The readings I gave you were before I added the sparkle conquest which is a stain fight chemical against minerals.