SECTION 7 –
PLUMBING
7-10
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
sewage drain 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.
HOLDING TANK HEATER
–If Equipped
Your coach may be equipped with black water
and gray water holding tank heaters to allow use
of waste utilities in freezing temperatures. The
holding tank heater power switch is located near
the monitor panel. The illuminated switch will
glow when the power is on.
DO NOT operate the holding tank heater
unless you are providing a supplemental 12-volt
power source to recharge the house batteries.
This means either the shoreline cord must be
plugged into a 120-volt source, the auxiliary
generator must be operating, or the chassis
engine must be running (such as when driving
down the road). This will prevent excessive
discharge of the house battery.
NOTE: The holding tank heater pads are
electrical resistant-type heating
elements. This type of heating element
typically uses a large amount of current
while operating. If the tank heaters are
used without a recharging source, they
will drain the house batteries in a
relatively short period. Typically, the
batteries would not support overnight
heating without a supplemental charging
source.
WATERLINE & TANK DRAIN
VALVES
The water drain valves are used to drain water
from the water tank and the water supply lines
when preparing the motorhome for storage or
when sanitizing the water system.
To open or close the drain valves, turn the
handles in the directions indicated by the
following illustration.
See the drain valve location chart at the end of
this section for locations on your model.
Holding Tank Heater Switch
(Located near monitor panel)
-Typical View
Waterline Drain Valves
(Typical)
Normal Operation
All Open
Drain Open
