SECTION 7
PLUMBING SYSTEMS
7-1
FRESH WATER
SYSTEM
The fresh water system provides water to the
galley sink, shower, bathroom lavatory, toilet and
water heater. Water may be supplied by either of
two sources:
-
a water tank located within the motor home,
or
-
any external water source to which the motor
home may be connected, known as “city
water”.
FRESH WATER TANK FILLING PROCE-
DURES:
Always fill the fresh water tank at an approved
potable water filling facility or a known purified
drinking water source.
The tank may be filled by inserting a hose into
the tank fill opening. A built-in vent prevents the
tank from becoming air-locked while filling.
When neither city water nor a hydrant are
available, a bucket and funnel may be used to fill
the tank, but this can take a considerable amount
of time.
WATER PUMP
Pressure for the water system is supplied by a
water system demand pump which is fully auto-
matic after initial priming. When a faucet is
opened, the pump begins operation to provide a
constant flow from the tank. When the faucet is
closed, the pump automatically shuts off.
WATER PUMP SWITCH
The water pump switch is located on the wa-
ter/holding tank monitor panel (See Section 8). If
your vehicle is not equipped with a monitor
panel, the switch will be located on a lower cabi-
net, the panel below a bed, or on the wardrobe
wall panel, depending upon model. While the
switch is in the “ON” position, the pump will
automatically supply water pressure as it is need-
ed. It is recommended that the pump switch be
turned off whenever you are away from the vehi-
cle or not using the water system. A slow leak in
a faucet could drain the water system and dis-
charge the coach battery.
INITIAL START-UP
1. Make sure that all water drain valves are
closed, including water heater valve. (Refer
to Section 10.)
2. Turn water pump switch to “OFF” position.
3. Fill water tank.
4. Open all faucets, hot and cold.
5. Turn on pump switch.
6. Close each faucet as it begins to deliver a
steady stream of water (close cold water
first). Leave hot water faucets on until they
also deliver a steady stream of water. This
will ensure that the water heater is filled with
water.
7. Check to be sure pump stops soon after all
faucets have been closed.
8. Pump is now ready for automatic operation.
Pump will start when a faucet is opened and
stop when the faucet is closed.
Fresh Water Tank Capacity
Models 322R & 322E ..........................30 gal.
Model 324V .........................................40 gal.
Models 327P .......................................33 gal.
Models 329N & 331C..........................31 gal.
W A T E R T A N K F I L L
