Holiday Navigator 2003 Owner's Manual page 246

Water Systems
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Dumping the Tanks:
1. When preparing to dump the black tank, first close the grey water
valve.
2. Fill the grey tank to at least 50% by running water in the shower
or sinks.
3. Use the monitor panel to observe tank fluid levels. When the grey
tank is 50% full stop filling the tank.
4. Open the black water valve. Allow the black tank to drain.
5. Use the tank flush system.
6. Connect a non-potable water hose, with pressure regulator, to the
flush system fitting located in the service center.
7. Turn on the faucet allowing water to rinse the black tank at least
three minutes. Never operate the system unattended. Ensure the
water flows freely though the drain hose.
8. When completed turn off the faucet and close the black water
valve.
9. Open the grey water valve. The water in the grey tank flushes any
remaining solids from the hose. With the grey water valve open,
run two gallons of water down any drain to flush the grey tank.
The grey valve remains open until the next drain cycle or departure.
WARNING: Never operate the flush system unattended. Flooding
may occur. Use the tank flush system each time the holding tanks
are cycled. Failure to routinely use the flush system will result in a
clogged spray nozzle. Turn off the water supply when finished
flushing the tank.
10. If preparing for travel, close the grey water valve. Undo any
restraining devices from the hose. Disconnect the hose from the
termination outlet by rotating the fitting counterclockwise 90º.
11. Raise hose and drain using hand over hand method working hose
towards shore fitting. Rinse the hose with outside facility and
repeat the hose drain process.
12. Remove the hose from shore fitting. Install hose in carrier and
lock door. Secure the termination cap (required by law in some
states).
13. If desired, add chemicals to the tanks to control odor. Follow the
chemical manufacturer's directions.
NOTE: Dump the black tank before driving.
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