Has anyone else experienced this? The legs on our new 16 x 48 creak like crazy when the kids are in the pool splashing around. It is level. All legs are plumb on their front and sides, all top rails are level. I'm not worried it's going to collapse. It's not completely full yet, but about a foot more to go, and I'm wondering if it will go away at any point because I'm not sure I'm going to be able to stand the sound all summer long.