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8. Press the toilet flush pedal and hold until
antifreeze begins flowing into the toilet.
Leave small amount of antifreeze that remains
in the bowl.
When Done Adding RV Antifreeze
9. Turn water pump switch off.
10. Turn the winterization valve so it points
toward the waterline to the pump. This will
stop the flow from the siphon tube and revert
the tank line flow to the pump.
11. Replace the protective cap onto the end of the
antifreeze siphon tube to keep out insects and
debris when not in use.
Drain Water Heater
12. Turn off the Water Heater power switch
before draining the water heater tank to avoid
damage to the heating element.
13. Drain the water heater by removing the plug
from the base of the water heater tank,
accessible from the outside of the coach.
(Requires socket and ratchet).
Water Heater Drain Plug
(Remove with socket)
14. Open the Pressure-Temperature Relief Valve
at the top right portion of the tank to prevent
air locking in the tank while draining.
Pressure-Temperature Relief Valve
(Lift handle only when water heater is cold)
15. Reinstall the water heater drain plug and close
the P-T Relief Valve when drained.
Drain Optional Appliances
16. At this time, if your coach is equipped with an
optional refrigerator ice maker, the waterlines
for that must also be drained.
(See "Winterizing Optional Appliances"
instructions at the end of this section.)
If not, proceed to the next numbered step.
Close All Drain Valves
17. Close all waterline drains and tank drain
valves to avoid contamination by dirt, insects,
or rodents.
18. 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
19. 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.
20. 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
SECTION 7 –
PLUMBING
7-13
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