While setting our Columbus up after a five hour drive to Maine in a heavy rain we discovered water on the floor between the two main slides and a puddle/wet area in the bedroom between the bed and the closet doors. We couldn’t think how water could get into the trailer from “failed” slide seals. The 5er is new and the seals have been inspected, washed and silicone applied with no notice of any defects but anything is possible when dealing with water infiltration. A theory is, could the wet areas be caused by water dripping from the AC vents due to the front and rear AC units or seal leak and water somehow got into the ducts and dripped into the floor. I looked at the units on the roof but didn't notice anything weird. As I said, just a theory.
Side Line: The 5er is at the dealer going through a "punch list"...wet floors is on the list.
I always believe the more inputs the better chance for a positive solution.
Any thoughts on possible sources of infiltration points would be appreciated?
Thanks for your replies.