Well, I got rid of the stains!...lowered the output on my SWG a few days ago so my FC was 1 ppm then I dropped the pH to 7.0, and since the staining was localized, I poured a bottle of 500 mg Vitamin C tablets into a sock and just ran it over the stained areas and watched them disappear. I then hit the pool with a good dose of sequestant and am running the filter and have turned up the SWG output a bit. Gonna recheck the pH tomoroow and slowly get that back up along with the FC....so far so good. I am now a happy camper!
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