We just installed a 17x33 rectangle Splash Alpha pool. The pool is mostly level, within a half inch or better I would say, and the buttress legs are on the splash support boxes, which are then on buried two inch pavers.
Anyway, at the corners, the first one or two legs seems to lean toward the shorter wall. One is leaning bad enough to have a slight bow to it. However, all four walls and the water line is level, so I don't see how this could be happening. I'm sure some pavers are higher and lower than others, which is probably contributing to the leaning posts, but somehow the pool still came out level.
Perhaps the ground is settling some? I used about two inches of pool sand and tamped it down the best I could. If settling caused it, then I am not as worried because the ground was dug down, not built up, so it can only settle so far. Anyway, does anyone have any experience with this? If the posts don't get any worse, can I simply leave them? I think with the pool being mostly level, that I am not facing any structural issues. And these pools have to be engineered in such as way to allow flexibility and shifting, surely. But I wanted to see if anyone had seen this before and can offer some guidance.
Here is a pic of one of the leaning legs. Any feedback would be most appreciated.