SECTION 7 –
PLUMBING
7-10
5.
Remove Full-Coach Water Filter (if
equipped).
Remove the filter canister from
the full-coach water filtration system in the
water center compartment and discard the
filter cartridge.
(
If your coach is not equipped with a full-
coach water filtration system, proceed to the
next numbered step.
)
After emptying the canister, remount it onto
the filter assembly and continue the blow-out
procedure.
6.
Open Faucets.
Turn on the water pump and
open all sink faucets and shower head knobs.
Leave open after water stops flowing.
7.
Drain Toilet.
Press the toilet flush pedal and
hold until water stops flowing in the toilet.
Then turn water pump switch off.
8.
Drain Optional Appliances.
At this time, if
your coach is equipped with an optional
refrigerator ice maker, dishwasher, or washer/
dryer, the waterlines for these appliances must
also be drained.
(See “Winterizing Optional Appliances”
instructions at the end of this section.)
If not, proceed to the next step.
9.
Drain Water Heater.
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,
accessible 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 draining.
10.
Connect Air Pressure.
After water has
stopped draining at all faucets and drain
valves, leave faucets open and connect a
“blow-out” plug to the city water connection
on the coach. Then use a compressed 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.
Water Heater Drain Plug
Remove with socket.
Lift handle only when water heater is cold.
City Water
Connection
Fresh Water
Inlet
Blow-out
Plug
Air Hose