20
E.
POTABLE WATER SYSTEM
To fill the potable water tank, open the exterior access door and remove plastic screw cap
(photo C-3.1).
The amount of water in the tank may be checked on the Monitor Panel (photo F-1.4), or you may
fill the tank until water overflows out of the fill. Potable water capacities are 60 litres for ALTO 17
and 100 litres for ALTOs 21 and 24.
Once the system is filled with water, turn on pump using “PUMP” switch (photo F-1.3). When a
faucet is open, 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.
Water pressure at some campgrounds may be low on city water. The water pump can be turned
on to assist the city water hookup pressure. Be sure there is some water in the potable 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.
Water Pump and Strainer
The water pump is similar to that found in larger trailers, motor homes and trailers.
The water pump and strainer are located under the rear seat on the left side.
To clean strainer screen (photo E-1.1), unscrew the clear plastic strainer cap counter clockwise
(photo E-1.2), remove and clean the screen. After cleaning, replace the screen in the strainer cup
and hand tighten the cap snuggly. NOTE: DO NOT OVERTIGHTEN. The gasket ring inside the cap
performs sealing and too much pressure will only break the strainer cap or ruin the gasket.
Start the pump and check for leaks. If a priming problem develops check all connection for air
leaks. The complete strainer assembly can be removed by loosening the threaded disconnect nuts
at the pump and strainer inlets.
2 1
PHOTO E-1
Water pump
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