[folivier]

I do have the caulk pieces on the wrinkles. I can still see a little daylight so they may not be big enough but I'm not getting leaks there.
We determined the water is coming in at a point 18" forward of the middle piece that lifts the slide when extended (the middle piece does have some rust so there must have been a leak there). Can't see any dips in the slide top that could be allowing water. Thinking of maybe applying eternabond tape in that area to build it up a little. It does not leak when the slide is retracted.
Bob, my problem may be similar to yours. The long bar that lifts the slide may need to be adjusted since it may not be lifting enough. I can slide a plastic putty knife under the bladder and that area is slightly easier to slide the putty knife under.