Winnebago Sunova Operator's Manual page 85

dumping, or to provide more direct
drainage while using on-site sewer hook-
ups.
3. Place the outlet end of sewage drain hose into
disposal opening.
NOTE: Black and Gray waste tank drain valve
positions may be reversed, depending on
floorplan and tank location.
4. Open the Black Waste Tank Drain Valve with
a quick pull and make sure there are no sags in
the hose. Move the hose gently about to
dislodge any waste and ensure complete
drainage. Close Black Waste Tank Drain
Valve as soon as tank is empty.
• 2nd - Pull Gray
Waste Tank Drain
Valve to drain Gray
Water (sink/shower)
Tank, then close.
NOTE: DO NOT OPEN BOTH VALVES AT
ONCE. Do not open the gray waste tank
drain valve until the black tank is
drained and black waste tank drain valve
closed to avoid sewage back-up into gray
tank. Gray water also rinses any black
water solids from the sewage drain hose.
5. Open the Gray Waste Tank Drain Valve. Be
sure there are no sags in the hose to ensure
complete drainage. Close Gray Waste Tank
Drain Valve as soon as tank is empty.
6. Add an odor control chemical to the sewage
holding tank through the toilet. These
chemicals are available at most RV supply
centers.
7. Rinse sewage drain hose thoroughly with
water before stowing.
NOTE: We recommend that you dump all
Flushing your Black Water Holding
Tank
an internal spray head that allows you to rinse the
inside of the tank with a shower of clean water
after dumping.
• 1st - Pull
1. Dump your black water holding tank in the
Black Waste
Tank Drain
Valve to drain
Black Water
2. Leave Black Waste Tank Drain valve open
(sewage)
Tank, then
close. 3. Attach a garden hose from a city water
4. Turn the water on to begin flushing. Allow
holding tanks before traveling to avoid
carrying unnecessary weight.
The black water holding tank is equipped with
C AU T I O N
Do not use the tank flush valve unless the
fullway termination valve is in the open
position. May result in an unsanitary
condition leading to illness or personal
injury.
usual manner at approved sewage disposal
station.
while flushing tank.
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
water to run for about three minutes.
SECTION 7 –
PLUMBING
7-9