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Ascorbid treatment failed. I dumped about 5 lbs of AA to the pool but the not all the stains were removed. This make me thought that it wasn't the metal stains, but I tried the sock test with Vita C tablets again and it worked. what should I do next? should I continue with AA treatment? The...

Hi mknauss, Thanks for your help I was able to identify the source of the stains - it is metal because Vitamin C wipe it right off. Now the question is how do I effectively remove all of them because they are everywhere in my 17,000 gal pool? Again, thank you for your help. Best.

Hi all, It's my first post here. I've been following a lot of good advice here and managed to turn my pool from blackish to clear blue within a few weeks. However, after the water is clear, I notice there are a lot of stains on the wall and bottom of the pool (which weren't there before). Been...