Dumping Holding Tanks - Winnebago 2011 sunova Operator's Manual

See "Specifications" in Section 1 -
Introduction for tank capacities for your model.

Dumping Holding Tanks

1. Remove sewage drain hose from holding tank
compartment.
2. Remove dust cap from sewage drain outlet
and connect sewage drain hose. Be sure it is
firmly attached.
Sewage Drain Outlet/
Dust Cap
Gray Waste Tank
Drain Valve
Holding Tank Drain Valves
(Located in holding tank compartment)
-Typical View
NOTE: The sewage drain outlet swivels
downward (on certain models) when
necessary to avoid bends in the sewage
drain hose, which could trap solids while
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.
Black Waste Tank
Drain Valve
• 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
holding tanks before traveling to avoid
carrying unnecessary weight.
Using On-Site Sewer Hook-Ups
The sewage drain hose may remain attached to
the sewage drain outlet and be routed out the
bottom of the compartment while the motor
home is parked and connected to an on-site
sewage hook-up.
NOTE: Always keep service access passage
closed while utility connection is not in
use.
SECTION 7 –
PLUMBING
• 1st - Pull
Black Waste
Tank Drain
Valve to drain
Black Water
(sewage)
Tank, then
close.
7-7