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(1) Drain the freshwater tank using the petcock or other type of valve. Many trailers will have one like this. Higher-end trailers and fifth-wheels may have one in the utility compartment. Check your RV owner’s manual.
(5) The RV may be equipped with a winterizing kit from the factory like this one. Follow the instructions in your RV owner’s manual on which valves to turn, routing the pump suction from the freshwater tank to the winterizing kit.
(6) If your RV is equipped with a clothes washer, be sure to winterize it properly. Antifreeze must be run through the machine, the hot and cold connections and the drain pump.
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