I'm in the middle of replacing our AGP's liner. I expect to find sand at the bottom because of the squishy and uneven feel over the years. Instead we found this (very stinky too):

It almost looks like wall foam duct-taped together.
Should I try to keep? It is kind of wrinkly and uneven. Do I need to go ahead and pull/smooth out the sand?
Thanks.

It almost looks like wall foam duct-taped together.
Should I try to keep? It is kind of wrinkly and uneven. Do I need to go ahead and pull/smooth out the sand?
Thanks.