I'm posting this for a friend so info on my account not for this pool. His is an oval much bigger and deeper pool. We live in Florida and it's very sandy here but still concerned about the hole this tear, about 2" long caused. He had the land surveyed by a sinkhole company before installation and they said it was ok.

I dove down to try and patch it and the pull from the hole took the patch out of my hand. It was that strong. Covered it with a bowl and it leaked slower but liner will have to be replaced. Anyone had a fast leak that caused holes in the earth below it?
TX
Happy Memorial Day.