Yet Another Inground Pool Problem!

[teedoff]

I had a post last year about the liner coming away from the sides of the pool. The liner was patched and refilled and had no trouble all year long. Closed the pool last sept. Drained teh water down below the returns, emtied the sand filter tank, removed the drain plugs and covered the pool with the basic cover and water bags.

I checked the liner about two weeks ago and it was fine. This morning when I got up, I looked out and saw the cover had fallen down on one side of the pool and I could see the liner around the return had wrinkles in it. I ran out and sure enough the liner is wrinkled and the water, which was initially drained to just below the return, had drained even more so that now its like 2 feet below the return, which just barely coveres the floor of the shalow end.

We had a storm last night with probably 30 mph gusts and some heavy rain. Thats the only factor I can think of that would have changed the liner situation in just two weeks.

So it looks like another $400 or so dollars once again to "open" the pool this year. Not counting chemicals!

I wish I knew what exactly was causing this. I know one of the anwers I got for the post last year suggested that maybe the pool didnt have enough drainage around it. I do know they did put gravel around the circumferance of the pool...how much was or should have been used I couldnt tell you.

Please anyone have this problem before? or had liner wrinkles on multiple occasions with some resolution to the problem short of filling the pool in?

[MKuz14]

Keep as much water in that pool as possible over the cold months. The weight of the water in the pool is going to push against that liner keeping it flat and wrinkle free.

[teedoff]

Keep as much water in that pool as possible over the cold months. The weight of the water in the pool is going to push against that liner keeping it flat and wrinkle free.

Well dont I still have to drain the water down below the return openings to make sure no water remains in the lines and cause possible freezing? I mean like I said..thats where the water level was as of a couple weeks ago...now its very low.