Wheel well leak
Several months ago I discovered that I had a water pump leak and I replaced the water pump which is located under the wardrobe just behind the wheel well. At that time I also installed a moisture alarm right beside the pump; the alarm was placed in position with double-sided tape. Last weekend we drove back to Ottawa from Toronto in a driving rainstorm for the entire 5 hour trip and the moisture alarm went off. When I got back home I emptied out the wardrobe, flipped up the floor and detected that the water came in just where the wheel well is attached (at the rear) to the outside wall. Obviously this was from the spray from the tires running on wet pavement. The next day, after things had dried out a bit, I looked under the wheel well, and by running my hand along the edge of the wheel well where it attached to the outer wall, I found a gap in the plastic, and was able to actually put a finger in and feel the fiberglass insulation.
I took some silicone-based caulking tape and layered it so that I could cover the gap, then I cut some foil from the bottom of an aluminum take-out dish and pressed that over it with Vulkem to seal the edges. I know that this is just a temporary fix until I get to JC for my scheduled service in November, but I would like to know what the permanent fix for this is.
I should add that the wood floor is not soft, and that there is no deterioration (thankfully), so this was caught early. When I get to JC and they remove all the wheels to repack my bearings and check the brakes (my usual twice yearly service), I will have them thoroughly check the wheel wells and make sure that all those seams are properly sealed.
1987 Excella 32-foot
1999 Dodge Ram 2500HD Diesel