Hello,

i have been opening my in-gound pool for many years without significant issues - however this year, i have a few stains on the liner at the bottom of the pool (shallow end) that seemed to have come from leaves and dead worms accumulating in some spots.

The attempts to brush them off after shocking the pool didn't do much. I read few posts on how to remove stains but they all seem to refer to mineral stains, so I was wondering if someone faced the same type of stains and what is the best solution to get rid of them
Thank you

Joelg2k