Oh wow, sorry to hear, stma. the stains we have our the weirdest pattern, almost like streaks but all thew way around the cove part of the liner they are solid and alittle darker. I was crushing 5 vitamin c pills at a time and putting in a sock and it would clean a nice area before it would be gone. I did that on saturday and the spots I cleaned are still clean. I think were going to stick with the cruched vitamin c and see how long that lasts. Kroger keeps there vitamins buy 1 bottle get a bottle free, so we out $5 right now. It has literally stormed here everyday since we got the pool clean, havent been in it yet. Hope you can get yours patched, looks like a 4th of July pool party then put the winter cover on it lol