Dumping Holding Tanks - Winnebago Via 25Q Manual

SECTION 7 –
PLUMBING
tank contains the waste water from the galley
sink and shower, and may include bathroom
lavatory.
See "Specifications" in Section 1–
Introduction for tank capacities for your model.

Dumping Holding Tanks

1. Remove sewage drain hose from cylindrical
compartment near water service center or LP
fill, depending on model.
2. Remove dust cap from sewage drain outlet
and connect sewage drain hose. Be sure it is
firmly attached.
Sewage Drain Outlet
(Located underneath coach
behind driver side rear wheel)
-Typical View
3. Place the outlet end of sewage drain hose into
disposal opening.
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.
7-8
2nd - Pull Gray
Waste Tank Drain
valve to drain
Gray Water (sink/
shower) tank –
then close.
Holding Tank Drain Valves
(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 tank is
drained and dump valve closed to avoid
sewage back-up into gray tank. Gray
water also rinses any black water solids
from the sewage drain hose.
Black and Gray tank valve positions may
be reversed depending on floorplan and
tank location.
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.
7. Rinse sewage drain hose thoroughly with
water and stow.
NOTE: We recommend that you dump all
holding tanks before traveling to avoid
carrying unnecessary weight.
1st - Pull
Black
Waste
Tank Drain
valve to
drain Black
Water
(sewage)
tank – then
close.