Waste Water System - Winnebago Sunflyer Owner's Manual

SECTION 7
PLUMBING SYSTEMS
For your convenience, a water pump switch is
located near the shower knobs. This allows you
to turn the pump on or off from outside the
coach.
The exterior shower also doubles as a water
line drain valve. See drain valve locations on
page 7-8 for further information.

WASTE WATER SYSTEM

(HOLDING TANKS)
The drainage system is self-contained and
uses two separate holding tanks to contain the
waste water until it can be dumped at an appro-
priate waste water disposal site. This means you
can use the toilet, sinks and shower even in areas
where utility hookups are not available.
The main holding tank contains the sewage
from the toilet, and is commonly called the Black
water tank. The second holding tank contains the
waste water from the galley sink, bathroom lava-
tory and shower, and is commonly called the
Gray water tank.
The holding tanks are dumped through a com-
mon outlet located inside the water service com-
partment on the left side of the coach.
NOTE: The dump valve spout can be swiveled
downward or upward for routing the
hose out the bottom hatch while connect-
7-6
ed to on-site waste disposal, or out the
side door when dumping at a public
dump station.
DUMPING HOLDING TANKS
1. Attach the drain hose and place head of
sewer hose into disposal opening.
2. Unlock the hose handle and push it forward
to open the valve inside the hose head.
NOTE: Do not open the tank valves until the
hose valve is open. If you open the dump
valve before the hose valve, the hose will
fill with sewage and may clog in addition
to being difficult to move.
3. Open the sewage (black) tank valve with a
quick pull. OPEN ONE VALVE AT A
TIME. Move hose gently about to dislodge
any waste and to ensure complete drainage.
NOTE: Do not open the grey tank valve until the
black tank is drained and dump valve
closed to avoid sewage back-up into grey
tank. Grey water also rinses any black
water solids from the drain hose.