Water System - Airstream Excella 500 1973 Owner's Manual

Water System
The Airstream Water System provides full
service both when the trailer is self-contained,
or when city water is available. Water heater
capacity is 10 U. S. gallons. The water tank
stores 45 gallons of clean fresh water for all
your needs.
When self-contained, the Water Pump should
be turned on. The switch is located on the
Central Control Panel above the front roof
locker of your Airstream. The Water Pump
will run whenever a faucet is opened, and will
shut off when the faucet is closed. It will
deliver 3 gallons per minute under constant
pressure.
Note: The Water Pump must be turned off
when hooked up to city water supply and
when you leave your Airstream unattended.
Water Supply Inlet and Water Hose Storage
For city water supply, connect a 5/8" high
pressure hose to the water inlet fitting (see
photograph) located under the rear roadside
corner of the trailer, just forward of the
bumper. Turn the hose on and slowly open an
inside faucet until the water flows free of air.
The system will now be ready for use. If you
are staying for some time where city water is
available, drain the water storage tank. The
drain valve is accessible through a hole in the
floor below the galley sink. Be sure to refill
the tank with fresh water before departing.
The system has check valves in the water lines
to protect the water tank while you are
connected to the city water supply.
The water tank is located under the floor just
forward of the axle. To fill the water storage
tank, open the filler spout (see photo) on the
Water Tank Fill Spout
exterior wall adjacent to the galley, and fill
with a hose or a bucket, until the water
supply pipe is overflowing. Close and lock the
spout and the water system is ready to use.
To clean the tank, pour some bicarbonate of
soda into the filler spout with several
gallons
of water and allow to stand for a minimum of
four hours. Then flush the tank out by
opening the drain valve and running fresh
water through it.
The water pump and filter are under the
Galley Sink. The filter screen should be
cleaned periodically to prevent accumulation
of dirt and sand. To remove the screen,
disconnect the rubber hoses from both ends,
separate the screen housing, remove the
screen, clean and replace.
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