Winnebago Fuse 23A 2019 Operator's Manual page 70

SECTION 7 –
PLUMBING
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 connected to the water
pump.
This will stop the flow from the antifreeze
siphon tube and revert the tank line flow to the
water pump.
11. Replace the protective cap onto the end of the
antifreeze siphon tube to keep out insects or
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 motorhome
(requires socket and ratchet).
Water Heater Drain Plug
(Remove with socket)
C A U T I O N
Hot water can escape from tank causing
injury. Operate relief valve or remove
drain plug only when the tank water is
cold.
7-12
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.
Fill Drainage System P-Traps
16. 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 motorhome during storage.
Dump and Clean Holding Tanks
17. 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.
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 winterized.
See instructions for removal from storage in
Section 11 - Maintenance and Storage.