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Section 8: Plumbing System
™ NOTE: The water heater must be drained to prevent damage from freezing.
The water heater should be drained and bypassed during the winterization
process particularly if introducing RV antifreeze into the plumbing system.
Do not drain the water heater while it is hot or under pressure! Antifreeze
should be kept out of the water heater.
If you chose to perform the winterization process yourself, read and understand the follow-
ing information before starting. Contact customer service or your dealer for questions about
this process. It may be easier to winterize the RV with another person to assist you.
The preferred method to winterize your recreation vehicle is by using RV antifreeze in
the plumbing system.
Winterizing with Antifreeze
Requires non-toxic RV antifreeze in the water lines and does not require any special tools.
Use ONLY RV ANTIFREEZE in your fresh water system for freeze protection. No other
product or commodity should be used.
Automotive antifreeze (ethylene glycol) and windshield washer antifreeze
(methanol) are poisonous. Never use these products in your fresh water sys-
tem. These products are harmful and may be fatal if swallowed.
™ NOTE: Antifreeze should never enter the water heater, RV water filter, re-
frigerator, refrigerator water filter, or fresh water tank.
1.
Turn water heater power OFF. Turn water heater gas valve (if so equipped) OFF (out-
side of the RV).
2.
When possible, park the RV on level ground and drain the fresh water plumbing sys-
tem. See Draining the Fresh Water System
3.
Water heater should be empty after performing Step 2. Water heater bypass valves set
to BYPASS. Refer to Water Heater Bypass Section. Water is prevented from entering
the water heater
Cartridge water purifier filter should be removed.
4.
5.
Make sure the "fresh water tank drain" and "low point drains" are closed.
Close the fresh water tank shutoff valve.
6.
7.
Move the valves to the "Sanitize/Winterize Lines" position. The low point drains must
be closed for the antifreeze to siphon through the lines.
8.
Attach the short hose supplied with the motor home to the fresh water connection inlet
and insert the other end of the hose into a gallon container of RV antifreeze. To assist
the siphoning process, put the container on a surface approximately two feet above
ground level.
9.
Turn the water pump ON. If the water pump fails to self-prime, temporarily open the
low point drains. Close the low point drains as soon as the water pump primes (RV
antifreeze will begin draining out) and before continuing to the next step.
10. Open the hot water line on all the faucets (kitchen, lavatory, shower and outside show-
er) until RV antifreeze begins to flow continuously.
11. Appliances should also be winterized.
12. Close the faucet hot water lines and repeat with the cold water lines on all the faucets.
13. Flush the toilet a couple of times until you see antifreeze in the bowl.
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