OK, I need some innovative ideas from the esteemed members of this group.
I've got a 1995 6 x 8 Haulmark trailer. Double doors in the rear, no side door or roof vent.
Over the past few months it has been sucking in road dirt and getting the contents all dusty. After just a few hours of use - highways and surface streets, no dirt roads - there is enough dirt on the floor to warrant sweeping it out. I don't know if the dirt is coming in from the top or just blowing around inside the trailer, but it's not limited to the floor area. I have shelves in the trailer and the dirt is even on the upper shelves.
I have closed myself up in the trailer and had a friend shine a bright light along all the seams but I don't see any holes. I've hosed the trailer down but never found any water in the trailer. There are thin plywood walls inside the trailer so it could be coming in from behind the walls and blowing up or down around them.
I'm considering putting a huge fan inside and see if I can feel the air blowing out.
Anybody have any other ideas - besides being in the trailer when it's doing 60 down the highway?