quietjake - Draining the Fresh Water tank takes pre-planning on these units. If you remember to open the drain the night before - the tank will be empty in the morning. In those cases where I wanted to hurry up the process, an electric leaf blower can be used to blow into the gravity fill connection. I usually use the blower to dry out the FW tank.
I purchased one of those 3 way valves from Camping World and inserted it between the pump and the tank to use for sucking in the pink RV antifreeze into the water lines -

Our RV drives about like a 1 ton dually pickup. And...contrary to some others - is spooky quiet on those "blacktop" highways. Did spend some time in the back while my wife drove the unit looking for rattles or noise. Leg supporting the dinette table, support legs under couch, convection oven internals, lid on the gas stove and burner grates were some of the culprets. We do not have china in the cabinets - use plastic cups and plates. Bubble wrap in the utensil drawer solved another problem.
My wife loves driving ours.