Hi All! New here. Just installed my 12x22 pool, and placed some patio stones under each leg. Now as the water is going up, the middle seems to be caving in. I wonder if the blocks are maybe too high? Should I have dug them in before installing the pool? I levelled the base first, then placed the stones, then just built up the pool. Should I empty it and start fresh? Or will she be ok once full? Thanks for the help.