Outdoors RV Mountain Series Owner's Manual page 104

Storage and Winterization
Water System Winterizing
Read this section completely before performing water system winterization.
1. If you have equipped your RV with a water filtration system, remove the filter cartridge before
beginning.
2. Shut off power and gas supply to water heater.
3. Drain the freshwater tank by opening the water tank drain valve. Close valve when empty.
4. Turn water pump on.
5. Open a cold-water faucet farthest away from the water pump. When the flow of water stops, turn
the water pump off.
6. Open all water faucets including shower, tub, kitchen, lavy, and exterior shower.
7. Drain shower heads by hanging them below diverter faucets.
8. Open water line hot and cold drain valves. Leave valves open. Refer to 'Water Line Low Point
Drains' section in the 'Plumbing Systems' chapter for more information.
9. Drain water heater by removing anode/drain located near the bottom of the heater on the exterior
and open the safety valve near the top. Refer to manufacturer literature provided in your owner
information packet for specific details.
10. Flush toilet until water stops flowing.
11. Be sure all water from all plumbing fixtures has been drained.
12. When each faucet and drain line has drained, close all faucets, water line drain valves and
freshwater tank drain valve. Install water heater drain plug and close the safety valve.
13. Drain and flush wastewater system following the procedure outlined in 'Plumbing Systems'
chapter.
14. Use compressed air (30 psi max.) to blow out the black tank flush system. If using compressed
air be sure that the black tank drain valve is open and uncapped. Alternatively you may pump
antifreeze into the inlet with a hand pump available from your RV dealer.
15. Close holding tank drain valves and secure outlet cap.
16. Locate water heater by-pass valve and turn to 'By-Pass' mode. Refer to 'Water Heater By-Pass'
section in the 'Plumbing Systems' chapter for more information.
 Draining the water system alone may not provide adequate cold
weather protection. If your RV is to be unheated during below
freezing temperatures, you must perform the following winterization
procedures. You may choose to consult your dealer for additional
winterizing procedures for your specific climate. Your dealer can
winterize your RV for you or can supply you with special antifreeze
which is safe and approved for use in RV water systems. Follow the
instructions furnished with the antifreeze. Damage to the water and
drain systems due to improper winterization are not covered under
warranty.
 DO NOT use automotive or windshield washer antifreeze in the RV
water system. These solutions may be harmful or fatal if swallowed.
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