HOWTO: Water System Winterizing
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© 2014 by Roadtrek, Inc.
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• Open the grey and black waste tank valves, and operate the waste water discharge pump for about 10 seconds. You should
see pink antifreeze coming out of the waste water discharge hose.
City water connection valve, shown
closed
Water pump filter
•
• Turn the city water connection valve on. The water pump will operate. Allow it to run about 20 seconds. Turn city water
connection valve off.
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• Turn the water pump off and open a galley sink faucet to release back pressure.
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• Open the fresh tank drain line briefly until antifreeze flows out.
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• Remove water pump filter if so equipped. Replace water pump filter lid.
Winterizing using compressed air
Roadtrek recommends against using compressed air for winterizing.
Other methods of winterizing
Roadtrek only recommends the winterizing method outlined above using RV antifreeze.