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AIRSTREAM LAND YACHT GAS
WATER SYSTEM - SELF-CONTAINED
The fresh water system consists of a water fill, fresh water tank, water-pump, pump filter, hot and cold
water lines, water heater, drain valves, and faucets.
To operate the system:
Turn the water heater by-pass valves to normal flow position.
The by-pass valves are located under the lavatory cabinet in the 33’
model (accessed by removing the lower shelf vertical close-out),
under the wardrobe in the 30’ model (pull off the small raised panel
door held on by pressure latches below the wardrobe door) and under
the bedroom wardrobe in the 26’ (open the lower door). For normal
operation open valves A and C and close valve B. (Reverse the
valves and drain the water heater for winterization).
Check all drain valves and turn them to the closed position as
needed.
Fill the water tank by opening the exterior door marked water fill, remove screw cap and pull the vent plug.
A garden hose can now be inserted. It's a good idea to let the water run through the hose for a short time to
flush it out. RVers sometimes fill their tanks with "home" water to avoid strange water that may be
distasteful to them on short outings. Remember the more water you carry in the fresh water tank, the less
cargo carrying capacity you have for other items.
The amount of water in the tank may be checked on the Monitor Panel, or you may fill the tank until water
overflows out of the fill.
Open the hot side of the galley or lavatory faucet and fill the water heater by turning on the water pump
switch located on the monitor panel or connecting to an exterior city water source. For some time the open
faucet will only sputter. This is because the water heater is being filled and air is being pushed out through
the lines. Once the water heater is full, a steady stream of water will come from the faucet. Now open a
cold faucet. It will sputter for a short time, but will soon expel a steady stream. All other faucets can now
be opened until all air is expelled.
Once the system is filled with water and the faucets are closed, the water pump will shut off. To prevent
equipment damage the water heater should only be started after the water system is primed and ready for
use.
When a faucet is opened the pump will come back on automatically. If the faucet is just barely open it is
normal for the pump to cycle on and off rapidly.
It is normal for a pump to occasionally cycle when all faucets are off to keep the water pressure at the set
point, however, if it cycles frequently (more than a few times an hour) the plumbing system and pump
should be checked to be sure it is not loosing pressure through a slow water leak or back through the pump.
Note: Water pressure at some campgrounds may be low. The water pump can be turned on to assist the city
water pressure. Be sure there is water in the fresh water tank. The pump will only use the water that is
needed out of the tank to bring the pressure up to the usual standard.
Caution: Turn the water pump off when the motorhome is left unattended.
G-5