It's three thirty on a lonely highway 30 miles out of town. Suddenly, a tire on my van explodes. I pull to the side and there is nothing left of the tire. Unfortunately, it's also a tire in front of the port dump valve. Nothing remained but fragments of broken pipes. I can't even imagine what liquids are leaking. Fast forward to the next morning. When I get home, I'm pondering how much this mess is going to cost me. The RV dealer gave me a price to replace the relief valve assembly, which was…