We are very new to the process of having a swimming pool, we read and reread the directions and still struggled with the setup. Once it was set up there were too many recommendations as to what put under the legs for support. Our thought was if we used cinder blocks or pavers that vinyl piece under the legs would wear out and break so we set the legs on compacted sand and leveled everything. Now our concerned is, the pool is full of water and the legs on one side are definitely sinking into the sand and with 4800 gallons of water we are very worried how to support those legs without draining the pool. Any ideas