Winnebago Suncruiser 33V Operator's Manual page 77

NOTE:If the hose end valve (handle) is closed
while pulling the hose to the disposal
opening, a vacuum lock condition will
develop which prevents the hose from
extending fully.
Do not open the holding tank valves until
the hose valve is open. If you open the
dump valve before the hose valve, the
hose will fill with sewage water and be
difficult to move or could cause the hose
to clog.
3. Open the sewage tank valve (black handle)
with a quick pull. Move hose gently about to
dislodge any waste and to ensure complete
drainage. Close the valve as soon as the tank
is empty.
NOTE:DO NOT OPEN BOTH VALVES AT
ONCE. Do not open the grey tank valve
until the black tank is drained and dump
valve closed to avoid sewage back-up
into grey tank. Grey water also rinses
any black water solids from the drain
hose.
Holding Tank Valves (Typical)
4. Open waste water dump valve (gray handle)
with a quick pull. Close valve handle as soon
as tank is empty.
5. After both 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 sewage dump
valve and drain the tank again. Close valve
when done.)
6. Close hose valve by pulling handle up until
lock snaps into place.
7. Rinse end of sewer hose thoroughly with
water and stow.
NOTE:If the hose will not collapse while storing,
open the hose end valve (handle) to
release air trapped inside the hose.
8. It is advisable to add an odor control chemical
to the sewage holding tank. These chemicals
are available at most R.V. stores.
NOTE: We recommend that you dump all hold-
ing tanks before traveling to avoid carry-
ing unnecessary weight.
Flushing your Black Water Holding
Tank
The black water 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 water holding tank in the
usual manner at approved sewage disposal
station.
SECTION 7
PLUMBING
7-7