18x52 Ultra Frame.
I have leveled the ground in a 19' circle. From reading posts on this site I understand that something to increase surface area needs to be placed under the support legs to prevent sinking. I also understand that they need to be recessed to approximately .25" above the pad surface, positioned to prevent touching liner and have the support legs well onto the surface. Apparently the legs shift while filling the pool so this seems like a difficult procedure given all the variables. What is the approved solution?
I installed the pool last year but took it down at the end of season because the pad was not quite level. I did not notice the legs having sunk but could have been the off-level situation making it unnoticeable. The soil is hard packed sandy clay or clay sand but does get a little mushy on the surface with rain.