10-5
SECTION 10
PLUMBING SYSTEMS
10 - PLUMBING SYSTEMS
icone spray.Turn the water pump off and
operate flush pedal to drain water from the
toilet bowl. Spray silicone lubricant onto
flush valve inside bowl and operate flush
pedal a few times to ensure free operation.
See winterizing instructions at the end of this
section to prepare the toilet for storage in freez-
ing conditions.
WA S T E WATER S Y S T E M
(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 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 lav-
atory. See Specifications Section for your model.
Dumping Holding Tanks
1. Remove drain hose from exterior storage
compartment.
2. Remove dust cap from drain and connect
drain hose. Be sure it is firmly attached.
NOTE: The dump valve drain outlet section
swivels downward when necessary to
avoid bends in the drain hose which
could trap solids while dumping. It will
also provide more direct drainage while
using on-site sewer hook-ups.
3. Place the other end of sewer hose into dis-
posal opening.
4. Open the black water 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 water valve as soon as tank is empty.
NOTE: Do not open the gray water valve until
the black water 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. Be sure there are
no sags in the hose to ensure complete drain-
age. Close gray water valve as soon as tank
is empty.
6. After both tanks have been drained, run sev-
eral gallons of water into the sewage tank
through the toilet. Then open black tank
valve and drain the tank again. Close valve
and replace dust cap securely.
7. Add an odor control chemical to the sewage
holding tank. These chemicals are available
at most R.V. stores.
8. Rinse sewer hose thoroughly with water and
stow.
NOTE: We recommend that you dump all hold-
ing tanks before traveling to avoid carry-
ing 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.
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
Holding Tank Dump Valves (typical)
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