SECTION 10
PLUMBING SYSTEMS
10-12
•
After the system has been thoroughly
flushed, remove the diverter and store for
future use. The diverter plug is intended
for winterization only.
•
Install a new water filter cartridge.
•
If your coach is equipped with the refrig-
erator ice maker option, the ice maker
water lines must also be drained. See
“Winterizing the Ice Maker” in section 6.
6. Turn the Water Pump switch ON to allow it
to operate until you are done draining all fau-
cets and toilet.
7. Open all faucets and shower head valves,
including exterior shower.
8. Operate the toilet flush pedal and hold until
water stops flowing in the toilet. Then turn
water pump switch OFF.
9. Turn off the water heater power switch
before draining the water heater tank to
avoid damage to the heating element.
Drain the water heater by removing the plug
from the base of the water heater tank, acces-
sible from the outside of the coach.
(Requires socket and ratchet.) Also open the
Pressure-Temperature relief valve at the top
right portion of the tank to prevent air lock-
ing in the tank while draining.
10. After water has stopped draining at all fau-
cets and drain valves, connect a “blow-out”
plug to the city water connection on the
coach. Then use a hand pump or air com-
pressor regulated to 30 psi or less to force air
through the system. (A “blow-out” plug can
be purchased at any Winnebago or Itasca
dealer. P/N 701705-01-000.)
NOTE:
DO NOT burst air into the system.
This can damage the water pump. It is
better to let air in slowly.
11. Let air flow for five minutes until water is
completely drained out of faucets and drain
valves. Then close faucets one at a time.
12. Operate and hold toilet flush pedal until
water is completely drained from toilet.
13. Turn air pressure off and disconnect water
purge adapters. Recap the city water connec-
tion to avoid contamination by dirt or
insects.
14. Close all drain valves and faucets to avoid
contamination by dirt or insects. Reinstall
water heater drain plug and close P-T relief
valve.
15. Pour about one cup of non-toxic RV anti-
freeze into the kitchen sink drain, bathroom
sink drain and shower drain. This prevents
any holding tank odors from entering the
coach during storage.
P-T Valve
Water Heater Drain Plug
L r water lines.
City Water
Connection
Blow Out Plug
CAUTION