SECTION 10 PLUMBING SYSTEMS
10-1
10 - PLUMBI
N
G SYSTEMS
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 Procedures:
Always fill the fresh water tank at an approved
potable water filling facility or a known purified
drinking water source.
To Pressure Fill Water Tank from City Water
Connection:
1. Attach a hose from a city water faucet to the
city water connector in the water center on
the left (driver) side of your coach.
2. Open the Gravity Fill door to provide ade-
quate air venting and avoid pressure buildup.
3. Turn the tank fill valve to the WATER
TANK FILL position.
4. Tank is full when water begins to flow from
the overflow vent tube beneath the coach.
5. Be sure to turn the tank fill valve to the
CITY FILL position in order to use the water
demand pump. If the valve is left in Water
Tank Fill position the pump will run continu-
ously without delivering water to faucets.
The Water Tank Fill position is only for pres-
sure filling the water tank from the city water
hose connection.
WATER PUMP
When your coach is not connected to a city
water supply, water is supplied from the fresh
water tank by a water system demand pump. A
demand pump is designed to run only when you
are using water. This is what happens when you
turn a faucet on - the water line pressure drops
and the pump begins to run, and will continue to
run as long as the faucet is open. When you turn
the faucet off, the water line pressure builds up
and the pump shuts itself off.
The pump is self-priming and will run briefly
to build up line pressure when the Water Pump
Switch is first turned on. See “Initial Water Line
Priming” for instructions on using the water sys-
tem for the first time after a storage period or if
the tank and water lines have been drained.
Water Center - typical
Turn tank fill valve to
WATER TANK FILL position.
