Four winns 338 Vista, Owner'S Manual

Page: 83 / 161

Vista 348 Owner’s Manual
08/01
Section J
Page 5
B. Head With Overboard Discharge
This option is available on all Vista® models. The head
operates the same as the VacuFlush system above but
an additional line with a “Y” has been installed for over-
board discharge. The waste will be pumped into the hold-
ing tank from the head. The macerator pump is installed
after the “Y”. Refer to Figures J4 & J7.
Figure J7: Overboard Discharge Option
NOTICE
The macerator pump must be used to discharge
waste overboard. However, DO NOT use the
macerator pump to discharge waste at a pump-
ing station. If the hose is not air tight or connect-
ed properly, waste could spurt out or leak around
the deck fitting and into the boat.
To operate the overboard discharge system:
1. The discharge valve is located in the engine compart-
ment. To open, turn the valve so that the handle is
parallel to the flow of the valve. The waste deck plate
cover must be tightened securely for the overboard
discharge system to operate.
2. Turn ON the macerator pump switch which is located
in the head on the switch panel. Allow the pump to
run until the storage tank is empty. The sound of the
pump’s motor load and speed will change when the
tank becomes empty.
P-Trap Air Vent
Sanx Filter
Waste
Deck Fill
Figure J5: VacuFlush Vacuum Generator
and Waste Deck Fill
To operate:
1. To add water to the toilet before using, raise flush
lever until desired water level is reached. Gener-
ally, more water is required only when flushing sol-
ids. See Figure J6.
2. To flush toilet, press flush lever sharply down to the
floor until contents clear bowl. A sharp popping noise
is normal when the vacuum seal is broken and the
flushing action begins. Be sure to hold lever down
for 3 seconds. If flush lever is accidentally released
before waste clears bowl, do not attempt to flush
toilet again until vacuum pump stops running. A
small amount of water should remain in the bowl
after flushing.
3. Do not dispose of sanitary napkins or other non-
dissolving items in toilet, such as facial tissue or
paper towels. These items can cause plugging of
the system. Refer to the Deodorants and Special
Tissue section in the manufacturer’s manual for
more information.
Vacuum
Generator
Figure J6: VacuFlush Operations
1. Add
Water
2. Flush For
3 Seconds
3. Do Not
Lift
Press
P-Trap Air Vent
Sanx Filter
Waste
Deck Fill
Single Wye
Seacock
Macerator