I have one of the safety covers that you can safely walk on and so forth, it consists of a number of rectangles that are sawn together with some kind of material stretched along all the seams. The cover is for the pool and the hot tub area. I noticed that over the winter one side of a rectangle that is over the hot top has come apart, mainly the seam that holds it together the stitching all came loose/disintegrated. It just seems to be isolated to that one edge (water collects near that spot in the winter which could be part of the reason). My question is can this be somehow fixed and where should I go or ask ? Replacing the cover would be very costly and I do not think I can patch this up on my own.