Airstream Interstate 24X - Emptying the Black and Gray Water Holding Tanks; Macerator Impeller Release Feature; Manual Operation

Maintenance
9-12 2022 Interstate 24X
Emptying the Black and Gray Water Holding Tanks
1� Remove the high pressure waste hose by opening
the hose reel compartment door and momentarily
pressing the “release” switch� Once released, the
hose can be manually pulled out� Secure the hose
at the disposal facility inlet using the threaded or
rubber adaptor and open the drip proof valve on
the end of the hose�
CAUTION
The pressure from the macerator pump may push
the hose from the inlet if the hose is not secured
properly.
2� Open the Black Water valve� Empty the Black
Water tank rst and the Gray Water tank second,
using the Gray Water to help ush the pump and
hose of Black Water sewage�
3� Turn on macerator pump to liquefy and pump out
the solids in the tank�
4� When black tank is empty, turn off the pump�
5� Open the Gray Water tank valve and turn on the
pump� Run until just before the pump runs dry� Any
trickle of gray water left will remain in discharge
hose behind drip proof valve and is typical�
Remember, running the pump dry for more than 30
seconds could damage the pump�
6� Turn the drip-proof valve off and remove the hose
adaptor from the dump station inlet� Retract the
hose into the hose reel by holding the switch in
the “retract” position� Be sure to guide the hose
back and forth onto the reel evenly� Close the
compartment door�
NOTE
Watch all connections while dumping. Close dump
valve immediately, turn off pump, and close hose
drip-proof valve if a leak is noticed.
Macerator Impeller Release Feature
Impeller
Release
Feature
After long periods of non-use, a stuck impeller can
be easily broken loose with a screwdriver inserted in
the motor shaft slot� Remove the rubber boot, turn
the shaft clockwise, and replace the rubber boot� The
impeller can usually be found under the touring coach,
near the macerator hose reel�
Manual Operation
In case the electric dump valves fail to open, manually
pull/push the arm once, to open and close the valve�
The manual arm is located under the vehicle, near the
macerator hose reel�