About a week before I was going to open my pool, I noticed sand washed out from about 3/4 of the way around the pool. Peeking under the winter cover, I found the bead liner had fallen off all the way around, except where the skimmer held it in place.

I found a hole in the floor of the liner and repaired it. (How it got a hole, without being used, covered wth a winter cover?) The sand around most of the perimeter had washed out. I guess as the sand washed out, the liner was pulled down by the weight of the water, causing the bead to dislodge.

Replaced the sand, but cannot get the liner back without wrinkles on the florr. Tried the shop vac, but it still has wrinkles. Been messing with it periodically for a couple weeks, without success. I put this liner in, so I have a little experience replacing liners, and it didn't present the problems when new, that its giving me now.

Is it possible the liner stretched down into the troughs caused by the sand washing out, that the liner will never fit properly?