I've looked around and cant find the resolution to the issue I am having. I opened up my 15x25 pool this year and could not get the green water to clear up. Eventually per the recommendation of two pool stores, I drained most of the water. I am not in the process of refilling, but after I get about 10-12" of water in the pool the liner comes off the wall. There seems to be a large bulge about halfway up the liner on the ends that the liner is coming off of. I think the liner may be several inches off the wall where the bulge is. I now cannot even get the liner to stretch back over the wall. This is happening an both ends. There are very few, almost no, wrinkles on the floor. I dont understand why the same liner is all of a sudden not fitting. I thought of maybe just going ahead an replacing the liner (since its got to be at least 5-10 yrs old based on paperwork when I bought this house), but dont want to have the same issue with the new liner. I figured trial and error would be better with the old liner.
I dont want to put more water in unless that will help.