Emptying The Black And Gray Water Holding Tanks; Macerator Impeller Release Feature; Manual Operation - Airstream INTERSTATE 24 TommyBahama Owner's Manual

NOTE
Do not run Macerator pump more than 15 minutes
continuously. Do not run the Macerator pump dry
for more than 30 seconds. THE MACERATOR WILL
NOT HANDLE HARD SOLID OBJECTS, SANITARY
NAPKINS OR RAGS. Never put wet strength paper
towels, tissues, or sanitary napkins in your holding
tank. They will not dissolve and will jam the
mechanism of the dump valve and the macerator
pump impeller.

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 first and the Gray Water tank second,
using the Gray Water to help flush 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�
2023 Tommy Bahama Interstate 24
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�
Maintenance
9-9