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Using exterior shower to drain waterline
-Typical View
4. Remove Full-Coach Water Filter. Remove
the filter canister from the Full-Coach Water
Filtration System in the water service center
and discard the filter cartridge.
After emptying the canister, remount it onto
the filter assembly and continue the Blow-Out
Procedure.
5. Open Faucets. Turn on the water pump and
open all sink faucets and shower head knobs.
Leave open after water stops flowing.
6. Drain Toilet. Press the toilet flush pedal and
hold until water stops flowing in the toilet.
Then turn Water Pump switch off.
7. Drain Optional Appliances. At this time, if
your motorhome is equipped with an optional
refrigerator ice maker or washer/dryer, 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.
8. 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 motorhome.
(Requires socket and ratchet).
Water Heater Drain Plug
(Remove with socket)
CAUTION
Hot water can escape from tank causing
injury. Operate relief valve or remove
drain plug only when the tank water is
cold.
• Also, 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)
9. 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 motorhome. 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 Industries
dealer.
SECTION 7 -
PLUMBING
®
7-15
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