The liner got majorly dinged up during fabrication and it looks like hell. There are a couple spots that look like they may have weakened substantially. If I had it to do over again, I would use pond grade vinyl for the floor--its much easier to work with. There are other process related things I would change to make it easier to manufacture and cause fewer dings.
The pipe, in the corners, has so much strain on it that it is actually bending substantially. I'm surprised how much force we needed to exert on it to get the pipe in place. We had to use a 5000lb ratchet strap tethered to a pallet rack! It pulled everything together pretty nicely though, and the vinyl is pulled pretty taught.
We'll see what happens tomorrow