Winnebago Tour 2014 Owner's Manual page 107

Model 42GD is featured with two gray waste
tanks. Therefore, two Gray Waste Tank
Drain Valves must be opened.
5. After waste tanks have been drained, flush the
black water tank as described in "Flushing
Your Black Water Holding Tank" following
this procedure. (If hose is not available, run
several gallons of water into the sewage tank
through the toilet. Then open the Black Waste
Tank Drain Valve and drain the tank again.
Close Black Waste Tank Drain Valve when
done).
6. Close sewage drain hose valve by pulling
handle up until lock snaps into place.
7. Rinse end of sewage drain hose thoroughly
with water and stow.
NOTE: If the sewage drain hose will not
collapse while storing, open the sewage
drain hose end valve (handle) to release
air trapped inside the hose.
8. Add an odor control chemical to the black
waste holding tank through the toilet. These
chemicals are available at most RV stores.
NOTE: We recommend that you dump all
holding tanks before traveling to avoid
carrying unnecessary weight.
Flushing Your Black Waste Holding
Tank
The black waste holding tank is equipped with
an internal spray head that allows you to rinse the
inside of the tank with a shower of clean water
after dumping.
1. Dump your black waste holding tank in the
usual manner at an approved sewage disposal
station.
2. Leave Black Waste Tank Drain Valve open
while flushing tank.
3. Attach a garden hose from a city water
hydrant to the Black Waste Tank Flush Inlet
fitting in the water service center. (This inlet is
clearly marked separate from the City Water
inlet).
Black Waste Tank Flush Inlet
(Located in water service center)
-Typical View
4. Turn the water on to begin flushing. Allow
water to run for about three minutes.
5. Disconnect garden hose from flushing system
and close Black Waste Tank Drain Valve.
Using On-Site Sewer Hook-Ups
The sewage drain hose may remain attached to
the sewage drain outlet and be routed out the flip-
down hatch in the bottom of the compartment
while the motorhome is parked and connected to
an on-site sewage hook-up.
The center outlet section may be swiveled
downward for better hose alignment and
drainage.
WARNING
Service inlet access must be closed when
utility connections are not in use.
SECTION 7 –
PLUMBING
7-13