Last summer I bought a 24' round AG pool & hired an idiot, whoops, Installer to put it up. He did not do it correctly. My yard slopes and although he did dig the high end out some, he tried to use the fill dirt to raise the lower end up. Of course, once there was water in the pool the low end sank. I had him come back & he added some concrete pavers to the lower end & raised it up some but it just continued to sink through the summer. All season I had to keep adding water to the pool to the tip top of the low end so that it would reach the skimmer which was on the high end. This year I took the pool down to level it. I don't have the money to pay for another pool installer. I have had a couple of estimates & they range from $1,000-$1,700. I want to do it myself & I know that I am going to need a retaining wall on the low end of the yard. I really only need a wall about 12" high to level the pool. Does anyone have any experience with this? It looks like they sell interlocking blocks to create a retaining wall. Will these support the added water weight? How deep do I need to bury the bottom of the wall to get proper support. Can I use a sock pipe to reduce water pressure?