Winnebago Adventurer 27N Manual page 92

SECTION 7 -
PLUMBING
Black Waste Tank Drain Valve #2 (Front)
(Located in water service center)
-Typical View
6. Press and Hold the Waste Pump switch
(located in the water service center) and make
sure there are no sags in the hose. Release the
Waste Pump switch and close the Front Black
Waste Tank Drain Valves #1 and #2 as soon as
the tanks are empty.
Waste Pump Switch
(Located in water service center)
-Typical View
NOTE: Sound of Waste Pump will change
significantly when tank is empty.
7. Open the Rear Black Waste Tank Drain Valve
(located in the water service center). Move the
hose gently about to dislodge any waste and
ensure complete drainage. Close Rear Black
Waste Tank Drain Valve as soon as tank is
empty.
7-12
Black Waste Tank Drain Valve (Rear)
(Located in water service center)
-Typical View
NOTE: DO NOT OPEN BOTH VALVES AT
ONCE. Do not open the Gray Waste
Tank Drain Valve until the black tanks
are drained and dump valves closed to
avoid sewage back-up into gray tank.
Gray water also rinses any black water
solids from the sewage drain hose.
8. Open the Gray Waste Tank Drain Valve
(located in the water service center). 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.
Gray Waste Tank Drain Valve
(Located in water service center)
-Typical View
9. Add an odor control chemical to the sewage
holding tanks through both toilets. These
chemicals are available at most RV stores.