My Doughboy was installed last week, they finished it up on Friday. Due to a long battle with iron making it impossible to see the bottom, I did not get into the pool and really walk around until yesterday. I found a few wrinkles in the bottom which bothered me but I thought it is what it is. However we found a spot where a root is poking straight up into the liner. My wife stepped on it and it hurt her.
The ground prep for the installers was the worst -- lots of roots. They did put down Armor Shield:
This root, and we've found a few others already, feels like it was cut in the leveling process and the end is poking straight up into the liner. Feels much like a pencil is poking straight up.
I am really concerned about these. Even with the armor shield it seems like it's just a matter of time with people walking on it and even around it before it pokes through. Thankfully I know the Doughboy liners are some of the thickest out there, but I'm still concerned. Can they even do anything about it? A couple of them might be about 4' from the side, but there's at least one in the middle of the pool making digging from under the pool not much of an option. I would think you wouldn't be able to do that with the water pressure of liner coming down anyway, and you wouldn't be able to to pack the dirt good enough to not cause a soft spot...