7-9
SECTION 7 –
PLUMBING
Using On-Site Sewer Hook-Ups
The sewage drain hose may remain attached to
the sewage drain outlet while the motorhome 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
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.
NOTE: Always keep sewage drain outlet
capped while sewage connection is not in use.
Holding Tank Level Indicators
See “Systems Monitor Panel” in Section 4 -
Appliances for further information on the
monitor panel and checking tank levels.
See “Specifications” in Section 1 -
Introduction for tank capacities for your model.
WASTE WATER SYSTEM
(WASTE PUMP) - MODELS 25T
& 25Q
(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
appropriate 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
lavatory.
See “Specifications” in Section 1 -
Introduction for tank capacities for your model.
Waste Pump
The 12-volt Waste Pump disposes gray
holding tank waste through a small diameter
sewer hose, which is then drained through the
main sewage drain outlet.
NOTE: If Waste Pump stalls, check breaker in
the load center. If problem persists,
remove end cap and manually turn pump
shaft (located on the end of the Waste
Pump) with a screwdriver.
Waste Pump Access
Further Information
For further information and operating
cautions, see the Waste Pump manufacturer’s
user guide provided in your InfoCase.
Waste Pump
(Located behind removable
panel in water service center)
-Typical View
Waste Pump Access
(Located behind removable
panel in water service center)
Manual Pump
Access
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