Okay so I searched this on here and found dozens of threads, however the "dead horse" was mostly about how to remove. My question is if water imbalance is what can cause liner to wrinkle, what is the bad balance? The liner is about 10-12yrs old, the large wrinkle and one other showed up when liner was several years old, then this years after not opening pool last summer, there was additional ones?? They are on the slope closer to shallow end.
