Okay, so we leveled out a 20x20 ft square to install a 18ft round pool. I had researched quite a bit and watched videos on it and tried to advise my boyfriend as much as possible but he wanted to do things the easiest way possible. I was told we would need 2 or 3 yards of sand for the pool to sit on. We ended up using a sod cutter to get all the grass up then we framed it with some wood planks and got 2 yards of sand. Leveled the sand and set up the pool. We also set the legs up on pavers for a more stable base. However, this method of sand and pavers failed me. We ended up getting a large hole in the pool and the water gushing out made the sand wash away, and pavers sink. As of yesterday we drained the pool, and took it down. Looking to getting another pool. But I want to make sure we don't fail on the ground prep this time. So if anyone has any helpful suggestions or ideas on what I should do I would greatly appreciate it.
I've included 3 pictures. 1st pic is of the ground leveled with sand. (used laser level) 2nd pic is of the pool up without pavers 3 pic is of pool filled and pavers under legs. if you look close you can see on the back side where the sand shifted and the legs are a little bit lower in one spot. its the leg that you can see between the top railing of the ladder.