IMPORTANT
For coaches equipped with a sink or shower connected to a Saniflo Sanivite lift pump, the lift pump must be
completely emptied, or enough RV antifreeze must be poured down the drains to allow the lift pump to cycle
until the antifreeze concentration is sufficient for freeze protection. Pour at least one liter of antifreeze down
the drain connected to the lift pump. Make sure the pump cycles at least once, then pour another liter down
the drain. Wait for the lift pump to cycle again; then the remaining liquid in the lift pump should have an
adequate antifreeze concentration at this point.
23. Flush each toilet until the red antifreeze is detected. If the toilet is equipped with a sprayer, activate and flush
it until the antifreeze flows from the sprayer.
24. Run the dishwasher through a cycle to winterize the water inlet plumbing, as well as the pump and drain line.
25. If the coach is equipped, turn on the washing machine. Select a wash cycle setting that uses warm water to
activate both the hot and cold inlet valves. Allow the washing machine to fill for approximately two minutes. Press
the "cancel" and "drain" selection to begin draining the machine. This will winterize the pump and drain, as well as
the washing machine's P-trap.
26. Depress the refrigerator's external water dispenser while holding a container to catch the fluid. Continue to let
the fluid flow until the red antifreeze is detected.
NOTICE
The red antifreeze may not appear instantly, as most refrigerators have a reserve for cold water. However, if
you did not remove the water filter in the refrigerator in Step 5, the fluid will run clear for a long time.
27. Make sure the ice maker is turned on. Once it reaches the proper temperature, it will attempt to make ice
cubes, which will become pink in color. This may take several hours. Once they become pink, turn off the ice
maker and the refrigerator. Empty the ice cube tray, and clean out the ice maker and freezer area.
28. Turn off the water pump. Close the winterizing valve "B", and open valve "A".
29. Insert the plug into the clear hose, and stow the winterizing hose.
30. If the coach is equipped, winterize the macerator by turning it on and emptying the black and gray holding
tanks, allowing the macerator and macerator hose to fill with antifreeze. If there is no macerator in the coach, use
the sewer hose to drain the black tank, followed by the gray tank.
HOW TO DE-WINTERIZE A COACH
Provides the Newmar-recommended step-by-step instructions for de-winterizing a coach. This article contains written
instructions, as well as a video demonstration, for this procedure.
1. Connect your water hose to a fresh potable water supply.
2. Set the auto fill or tank fill valve for city water supply.
3. Run water through each faucet, toilet, and shower on both hot and cold settings.
4. Run the dishwasher and the washing machine through a complete cycle before using.
5. Depress the refrigerator water dispenser while holding a container to catch the fluid being dispensed. Continue
until clear water is dispensed.
6. Install the refrigerator filter (if equipped).
7. Turn off the water supply drain pressure from the system using low point drains. Install all filters in the system.
NOTICE
Newmar recommends installing clean filters unless the sanitization process will also be completed at this
time.
8. Close the low point drains.
9. Turn on the ice maker, allowing it to run through multiple cycles. Throw away any ice with antifreeze. Clean out
the ice maker and the tray until clear ice is available.
10. If the coach is equipped with a water heater, install a drain plug. Open the water heater valves, and close the
by-pass valve on the back side of the water heater.
11. Turn on the fresh potable water supply.
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