SECTION 10
PLUMBING SYSTEMS
10-12
WINTERIZING PROCEDURE
Cold Weather User Storage Procedure
1. Clean and dump holding tanks by following
steps A, B, and C
A.
Add water to the sewage holding tank
by holding the toilet flush lever open
with the water pump running. Add wa-
ter to the waste water holding tanks by
opening the kitchen, shower and lavato-
ry faucets. Tanks should be about 1/4 to
1/3 full to rinse properly. Driving to a
disposal site will normally loosen and
rinse any waste material from the sides
of the tank.
B.
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.
C.
Close dump valves and refit the dust cap
onto the drain outlet.
2. Level the motor home and drain the entire
plumbing system as described in the follow-
ing steps.
3. Open all drain valves. (See the water system
drain valve chart for locations on your
model.)
NOTE: If your coach is equipped with a water
purifier system, you will need to remove
the filter cartridge and install the divert-
er plug supplied. The cartridge is located
beneath the galley sink counter. The di-
verter plug must be removed and a filter
cartridge installed before resuming nor-
mal use of the water system. The plug is
intended for winterization only.
4. Operate the toilet flush lever and hold until
water stops flowing in the toilet. Then turn
water pump switch OFF.
5. 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 locking in the tank while drain-
ing.
6. After water has stopped draining at all fau-
cets and drain valves, leave faucets open and
connect a “blow-out” plug to the city water
connection on the coach. Then use a com-
pressed air hose 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.)
D R A I N
D R A I N
C L O S E
C L O S E
I N - L I N E
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L I N E - E N D
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