I just bought a 12' x 33" easy set pool. We worked all day yesterday trying to level off the ground. We dug down the tallest side and used sand to help build up the shorter side, and to level everything off. My husband went and got more sand this morning to finish up and just as he started filling up the pool it came a monsoon!! It washed a lot of the sand down the yard. My biggest concern is that even if we fix everything back and get the pool filled up, that the weight of the water isnt going to be enough to hold the sand down and if we have another big rain, which we will, that it will wash the sand away and the pool will be ruined. Will the sand stay in place once the pool is filled, or is this going to be a problem that we need to do something about now?? Please help, I am about to just box the thing back up and take it back. Thanks!!