Most of the forums I read discuss "winterizing an RV". Please give thoughts on how to freeze protect when on the road.
If I drive in freezing temps all day my waste water tanks are exposed. Especially the valves. I thought about building a heat exchanger using one of the exhaust pipes. A hose facing forward to pressurize the heat exchanger while driving and an outlet hose to blow warm air into a duct that covers the valves. This idea may not be worth the trouble or even work. So... what have you seen.