When I replaced the liner the first of the summer I added some more sand to fix some place's.In the process I think I put too much sand in the bottom..Which created the problem with to much slack in the liner which caused the lap-over of the wall's.Alot of slack in the liner...I would like to start from scratch so I'm thinking of removing all the sand..The ground here in N.C. is hard red clay...I was thinking of putting a pad back down,coving pad,wall pad with no sand.What do you think or is there a better way to fix my screw-up??????...I have never been happy with the sand..I think I will leave this to the pro's this go around!!!!