Pulled the rig home today from a Unit rally through pouring rain. When I got home I noticed a fair bit of water on the floor, originating under the fridge. Our vent is on the bottom with rodent screen on it. We live on a gravel road, so to keep dust out for the 5 miles, I usually cover with duct tape, then remove when I get to pavement. This is the first time I have seen water entering here, as we normally don't travel in the rain. Any ideas on a cover to be used to keep out the dust, and put on if needed to keep road water out. Thank you.