So they get US-made sheet vinyl?
I think it's pretty cool you could confirm that, Ben. How did you do it?

As I pointed out, FantaSea, also a very good company, would only offer me a limited discount on their so-called "lifetime warranty" water walls, so I guess that's the standard, the best you get in the industry.

When you "winterized" your pool, did you drain your filter? I suspect your filter split from ice damage. I've left my filter outside every winter with no problem for the last 11 winters--and we get cold ones in NJ! I take off the multi valve and store THAT in the basement, remove and store the drain cap, and tip the filter ever so slightly so that the drain is now the absolute lowest point. After it drains for a day, I then cover it with a Contractor's trash bag and use duct tape to make the bag tight. But I never let the duct tape touch the filter, just the bag. So there's not enough water in the tank to form enough ice to damage it.