Richard, also check the sealing tape on the top of the slide. The inside seam on mine has a layer of eternabond tape to seal the join, but it didn't go all the way across the top of the slide. Water could, and did, get into the coach on the edges of the slide when extended. I pulled the slide in, cleaned the entire area with Acetone and put another layer of tape all the way across the top and down the side about 4 inches. I think it must have worked since we were in the Florida Keys last week in a frog-strangler storm and nothing leaked.