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AIRSTREAM CLASSIC TRAILER OWNERS MANUAL
BLACK TANK FLUSH
Also in the utility compartment is a water hose connector marked "black tank flush". To use, hook up a
hose and turn on full force. Within the tank a spray head with a multiple holed head will spray the interior
surface of the tank. The vacuum breaker and check valve will be located inside the trailer above the exterior
connection. In most models this will place them under the lavatory.
The gate valve should be closed for the first couple of minutes, and then opened to let the water out in a
rush. Repeat as needed.
BLACK TANK FLUSH ASSEMBLY
F-9
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