I have an above ground pool with a deck around it. I drained the pool a couple of weeks ago to repair a leak and clean it. Upon filling it, the top of the walls are folding in in two spots. It seems to be still firmly attached in other areas. My question is, should this be repaired immediately? Will using the pool cause it to get worse? I assume my draining it caused the liner to shift or shrink, which caused this. However, at the bottom there seems to be some give API feel like til fit was drained I could stretch it back into place. Any thoughts?