Dumping Holding Tanks - Winnebago Impulse Silver User Manual

SECTION 7 –
PLUMBING

Dumping Holding Tanks

Holding Tank Dump Valves
(Located in mid-driver side
access compartment)
-Typical View
1. Remove sewage drain hose from rear bumper
storage.
2. Remove dust cap from sewage drain outlet
and connect sewer hose. Be sure it is firmly
attached.
NOTE: The sewage drain outlet on your coach
may swivel downward (depending on
model) 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.
7-6
1st - Pull Black
Waste Tank Drain
valve to drain
black water
(sewage) tank -
then close.
NOTE: Black and Gray tank 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.
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 is 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 stores.
Sewage Drain
Outlet/Dust Cap
2nd - Pull Gray
Waste Tank Drain
valve to drain
gray water (sink/
shower) tank -
then close.