I wasn't sure whether or not I was going to replace it, but i was in it this morning to clean out the last few leaves to look for other leaks. I found the holes in the liner. Beneath them, quite a bit of sand has washed away and the area around the hole did not seem to have the same suppleness as the walls of the liner. So I think I will replace it. That, naturally, leads to more questions.

The pool is a Cantar with a liner that locks into a channel that attaches to the top rim of the pool sides. Am I required to use the same type of liner? Can I use the type that folds over the edge?

I want to resurface the base that was originally installed, there are numerous rock that have worked their way to the surface. I have seen foam pads for the bottom. Has anyone used them? Would you recommend them? Should I take out the liner now if I do not plan on replacing it until I re open the pool in the spring?