This is very odd. As I was brushing the sides of the pool this morning I noticed that in a section by the steps there seems to be a screw working its way out of the steel wall. I have gone back and looked at the photos I took during the build and this is right where a section of the wall was screwed together. But it's not just the screw, it seems like there's concrete moving its way up the wall too; at least that's what it feels like. And it's only in this one section of the wall. The screw feels like it's going to bust through at any minute. Is there something I can do before that happens? And as for whatever this other stuff is....what in the heck could it be? The wall doesn't feel compromised and nothing is jaunting out anywhere.