I pulled my CY3010 through the first rain storm that I can recall since owning the RV. (Bought in Oct 2014) When we arrived at our destination, I lowered the rear door and noticed what looked like water streaks down the inside to the base of the ramp. When I ran my finger across the base area, it came up very wet. By the way the streaks are, It is coming in at the top and then down the inside of the door. The seals look to be in place. Suggestions how to check the fitting of the door to see how well it is sealing?