10-7
SECTION 10
PLUMBING SYSTEMS
10 - PLUMBING SYSTEMS
4. 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.
5. Close sewage valve and open waste (grey)
water dump valve with a quick pull. Close
valve handle as soon as tank is empty.
6. After both tanks have been drained, flush the
black water tank as described in ‘Flushing
your Black Water Holding Tank’ following
this procedure. (If hose is not available, run
several gallons of water into the sewage tank
through the toilet. Then open black tank
valve and drain the tank again. Close valve
when done.)
7. Close hose valve by pulling handle up until
lock snaps into place.
8. Rinse end of sewer hose thoroughly with
water and stow.
NOTE: Open the hose end valve (handle) while
storing the hose to avoid trapping air
inside the hose which prevents the hose
from collapsing fully.
9. It is advisable to add an odor control chemi-
cal to the sewage holding tank. These chemi-
cals are available at most R.V. stores.
NOTE: We recommend that you dump all hold-
ing tanks before traveling to avoid carry-
ing unnecessary weight.
Flushing your Black Water Holding
Tank
The black water holding tank is equipped
with an internal spray head that allows you to
rinse the inside of the tank with a shower of
clean water after dumping.
1. Dump your black water holding tank in the
usual manner at approved sewage disposal
station.
2. Leave black water dump valve open while
flushing tank.
3. Attach a garden hose from a city water
hydrant to the Flushing System inlet fitting
in the water system compartment. (This inlet
is clearly marked separate from the City
Water inlet.)
Holding Tank Valves (Typical)
