Airstream 390 - Manual (Page 51)

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PLUMBING
WATER PUMP AND STRAINER
Water pump access is in the lower exterior compartment on the curbside just in front
of the rear wheels. Once the exterior door is raised, the pump can be found behind the
small access door in the upper right corner of the storage area.
To clean strainer screen, first remove inlet
connection from pump side of strainer. This
will allow the intake side of the strainer to
be rotated about 1/8 turn counter clockwise
and removed. The screen part of the strainer
will now be accessible for cleaning.
When reassembling, only rotate the inlet
side of the strainer until the stops are felt.
The “O” ring performs sealing and too much
pressure will only break the strainer.
Cleaning Water Storage Tank
1. Prepare sodium hypochlorite solution using potable water and household bleach (5
1/4 to 6%) in the ratio of 1/4-cup bleach to 1 gallon of water. (Common household
bleaches are Purex and Chlorox.)
2. Pour 1 gallon of hypochlorite solution for each 15 gallons of capacity into the empty
water tank.
3. Add enough potable water to completely fill the water system.
4. Allow closed system to stand for three hours.
5. Drain the hypochlorite solution from the system and refill with potable water.
6. Excessive hypochlorite taste or odor remaining in the water system is removed by
rinsing the system with a vinegar solution mixed in the ratio of 1 quart of vinegar to
5 gallons of water.
7. Drain the system and flush with potable water.