Hello! We're new to pools, and are DYI-ing it all the way. We're getting a used pool from someone we know and just started excevating our yard. We have leveled the ground really well, however it's not smooth because of the skid steer tire tracks. We have all clay soil, so it's like digging into concrete with a shovel. Any advice on how to smooth it out? We also have it dug into a bowl shape, that's going to be a pain to smooth too! I tried attaching a photo, but it says my file is too big.