First question, it's suppose to get down to 20 degrees, I've emptied the holding tanks, I have the tank heaters and the macerator heater. Should I run the tank heaters even though they are empty in order to keep the macerator from freezing? What else could freeze? How about the water in take with the 4 way valve? Also the outside shower? Actually the water lines for both run on the inside. I will keep the inside of the coach warm.
Lynn