Maintenance
9-12 2017 Interstate
Emptying the Black and Gray Water Holding Tanks
1� Remove the high pressure waste hose by opening
the hose reel compartment door, putting the switch
into the “release” position, and manually pulling out
the hose� 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 putting the switch into
the “retract” position� Be sure to guide the hose
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�
Manual Operation
In case of electric system failure, manually pull/push
the arm located under the vehicle to open and close
the valve�
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