Our yard has a very slight slope. We have dug out the high points to get level, and have concrete patio stones under all of the posts. We have the pool pretty level at this point, with only about 1 to 1.5 difference between high and low water levels. Most of the posts are straight, but there are 2 (out of 15 poles) that are showing a slight lean in the direction of the low water level. The pool has been full for just 24 hours, and the poles were all straight as it was filling. My question is: is there some way of supporting the leaning poles, maybe a buttress of some sort to fight the pull of gravity? Or will this be OK since the level difference is only 1.5"? Any quick responses greatly appreciated. Thanks!