Definitely, try Vit. C and Iron Out on them.
You may want to look at this post I just made:
http://www.poolforum.com/pf2/showthr...778#post118778
Definitely, try Vit. C and Iron Out on them.
You may want to look at this post I just made:
http://www.poolforum.com/pf2/showthr...778#post118778
I find it hard to believe it would be iron, I use city water and in the three years no pool store test has ever showed metals. The thing I wonder is I do get a lot of soil into the pool. Is there a type of staining directly related to always dealing with rain bringing in yard soil? Not sure what Etching is could that be it?
13.5k gal IG pool with SWCG and intelliPH
Look in your toilet tank - is IT stained? What color?
(Iron can be present, but not show up on tests, because once it hits the pool, it becomes a stain so quickly. And once it's a stain, it's no longer in the water!)
PoolDoc / Ben
No metals in your water!!
I should qualify that, after looking more closely. I should have said: "Very low levels of iron in your water!"
Bottom line though, is still the result of testing Vitamin C and Iron Out on stained areas.
I'm not sure if it's a typo, but their current price for Iron Out is very cheap:
Super Iron Out IO30N Rust Stain Remover
Ascorbic Acid Powder
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