From the bloggers at RV Travel
Dear RV Doctor:
Please tell me the best way to winterize a washer/dryer combo. Thanks! —Jack O.
That’s what I like Jack: short and to the point! You can’t get any more direct than that!
The simplest procedure that works best with all washer/dryer combos is to simply drain all the water from the machine and turn off the water supply at the spigot for the washer fresh water inlet. If there is no shut-off valve dedicated to the washer, it is best to have one installed.
Leaving the machine completely void of water and isolated from the rest of the fresh water system will enable you to use RV anti-freeze in the remainder of the system, if necessary. The
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