Anyone have any tips/tricks to do this? I really don't want to screw or bolt the ladder to the top of the pool since I will have to take it off in the winter. Last season we made some tubes out of PVC and weighed with sand and laid them across the bottom of the ladder (inside the pool). That was really a pain since they move around when the ladder is used. Looking for some good suggestions as to how to keep the ladder in place all summer.