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7-17
SECTION 7 –
PLUMBING
15. Pour about one cup of RV antifreeze down
each drain for the galley sink, lavatory sink,
and shower/tub. This fills the drain trap pipes
to prevent holding tank odors from entering
the coach during storage.
Dump and Clean Holding Tanks
16. Completely drain the sewage and waste water
holding tanks at an approved waste disposal
site. Drain the sewage tank first so the
following waste water can rinse any waste
solids from the dump outlet and sewer hose.
17. Flush the sewage tank using the Black Waste
Tank Flush Inlet (if equipped).
18. Close dump valves and refit the dust cap onto
the drain outlet.
This will inhibit rust formation on valve shafts
and prevent entry and contamination by
airborne debris, insects, and rodents.
Your drainage and fresh water systems are now
totally winterized.
See instructions for removal from storage in
Maintenance Section.
WINTERIZING OPTIONAL
APPLIANCES
Winterizing Ice Maker
–If Equipped
When winterizing, make sure the waterline is
completely drained by following this procedure.
1. Drain coach waterlines.
2. Unscrew the water supply line from the
bottom of the water inlet valve and drain any
water left in the line. This connection is
located in the refrigerator service
compartment on the outside of the coach. (See
Refrigerator Service Access Compartment in
Appliances & Systems section.)
3. Let the ice maker run through a cycle, then
raise the shut-off arm.
4. Be sure water has drained from ice maker
supply line, then reconnect to inlet valve.
5. Ice Maker is now winterized.
Go to next optional appliance or go back to
Blow Out Procedure Step 9 - Drain Water
Heater or Antifreeze Fill Procedure Step 14.
To use Ice Maker again:
Flush antifreeze from the waterlines, then
1. Close all drain valves.
2. Turn the water supply on.
3. Be sure the ice bin is in place and the
automatic shutoff arm is down.
4. Let the refrigerator cool down to ice making
temperature. Remember, this can take up to 24
hours.
5. Let the ice maker cycle and dump the first
batch of ice.
Winterizing Washer/Dryer
–If Equipped
Method 1 – Drain Water
If you’ve decided to completely drain the
waterlines, follow these steps to winterize your
washer/dryer:
1. With the machine power OFF, pour 1/2 quart
of RV-type antifreeze into the washer drum.
2. Close the door. Advance the Program Selector
knob to a SPIN position.
3. Press ON/OFF Button (IN). Wait 1-2 minutes.
Ice Maker Water Supply Connection