Hello to all! I hve wintered in a 1978 rockwood 28' class c for the last 4 years and this summer bought a 1993 Cobra Monterrey 32' class a. The shower and bathroom sink are on the right side of coach and the water heater, toilet and kitchen sink are on the left side. The holding tanks are exposed but I will not be using the blackwater tank at all. What do I need to do to prevent line freezeup? It looks like the plumbing on the right side runs between the wall and the cabinetry and this has me concerned as to how to keep it warm in these spots. Any help will be greatly appreciated as I am considering whether or not I should attempt to winter in the 32' or go back to the 22'. Would really like to stay in the 32'! Please help. Thank you!