Hi i am so glad that there are sights like this, just bought a 22x5 ultra frame index pool i use to have the rise as you fill pool but wife wanted to upgrade,the problem i'am having the ground paver blocks i'am not sure do they go on top of the tarp and the foam padding or on bottom i've been looking around and cant find any thing and plus if i get the ground perfectly level,i dont have the string and the bottom of the pool so will the legs automatically straighten them selves or i have to do each one and how do i know its perfectly round when i set the frame togeather i already had to drain it once and dont want to have to do that agian thanks