490 Pilothouse • Owner’s Manual
Chapter 6: Plumbing
53
Marine Heads & Holding Tank
Vacuum Flush Head System
•
Read the vacuum flush head’s oper-
ation and maintenance manual.
•
The vacuum flush head system uses
freshwater from the freshwater tank
and a vacuum pump to flush waste
from the toilet into the holding
tank.
•
The holding tank is plumbed to a
fitting on the deck for dockside
pump-out.
•
To check the content level of the
holding tank, look at the monitoring
gauge. For the location of the hold-
ing tank monitoring gauge, see the
Component Locations section in
Chapter 2 of this Owner’s Manual.
•
Empty the holding tank at every
opportunity.
Winterizing the System
Read the marine head’s operation and
maintenance manual for winterizing
instructions.
Macerator
To use the macerator to pump waste
directly overboard (where laws per-
mit):
1. Open the underwater discharge
valve.
2. Press both macerator switches at
the same time to run the pump.
3. Stop running the macerator as
soon as the holding tank is empty.
4. Close the underwater discharge
valve when you are done pump-
ing.
•
For the locations of the underwater
discharge valve and the macerator
switches, see the Component Loca-
tions section in Chapter 2 of this
Owner’s Manual.
NOTI CE
Check with local authorities about the legal use of marine head systems.
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