Dumping Holding Tanks - Winnebago Chalet Manual

SECTION 7
PLUMBING
The black water holding tank contains the
sewage from the toilet and may include bathroom
lavatory on some models. The gray water holding
tank contains the waste water from the galley
sink and shower, and may include bathroom
lavatory.
See "Specifications" in Introduction section
for Tank Capacities for your model.

Dumping Holding Tanks

1. Remove drain hose from water service center.
2. Remove dust cap from drain and connect
sewer hose. Be sure it is firmly attached.
NOTE:The dump valve drain outlet swivels
downward when necessary to avoid
bends in the 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 sewer hose into
disposal opening.
Holding Tank Dump Valves (Typical)
Note: Black and Gray tank valve positions may
be reversed depending on floorplan and
tank location.
The center outlet section may be swiveled
downward for better hose alignment and
drainage.
4. Open the black water valve (black handle)
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 water valve as soon as
tank is empty.
7-6
NOTE:DO NOT OPEN BOTH VALVES AT
ONCE. Do not open the gray tank 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 drain
hose.
5. Open the gray water valve (gray handle). Be
sure there are no sags in the hose to ensure
complete drainage. Close gray water 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 R.V. stores.
7. Rinse sewer hose thoroughly with water and
stow.
NOTE: We recommend that you dump all
holding tanks before traveling to avoid
carrying unnecessary weight.
Using On-Site Sewer Hook-Ups
The drain hose may remain attached to the
dump outlet and be routed out the bottom of the
compartment while the motor home is parked and
connected to an on-site sewage hook-up.
The center outlet section may be swiveled
downward for better hose alignment and
drainage.
NOTE: Always keep service access passage
closed while utility connection is not in
use.
When using a sewer hook-up, keep the dump
valves closed until a tank becomes full or when
preparing to leave the site. This keeps the solids
in suspension, allowing them to be carried out
with the liquids when the dump valve is opened.
If the valve is left open, the liquids will drain off,
leaving solids in the tank. Should this
accidentally happen, disconnect the hose, fill the
tank about half full with water, and drive a few
miles to dislodge the solids. A few starts and
stops will aid in the process. Then reconnect the
hose and drain in the normal manner.
D-Series Class-A