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The VacuFlush toilet operates in a different way from
other marine toilets. VacuFlush systems use a small
amount of water (a little more than a pint) per flush in
addition to a simple vacuum. The toilet is connected to
the fresh water system. Fresh water is the key to an
odor free bathroom compartment. VacuFlush toilets are
equipped with an intergrade vacuum breaker which pre-
vents the possible contamination of the potable/fresh
water supply. See Figures J6 & J7. Also, refer to the
manufacturers literature included in the owner's packet.
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 acci-
dentally 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.
2. Flush For
1. Add
3 Seconds
Water
Lift
Figure J6: VacuFlush Operations
Vista 248/268 Owner's Manual
03/00
3. Do Not
Press
Figure J7: VacuFlush Vacuum Generator
C. Head With Overboard Discharge
This option is available on all Vista models. The head
operates the same as the porcelain head system de-
scribed earlier but an additional line with a "wye" has
been installed for overboard discharge. The waste will
be pumped into the holding tank from the head. The
macerator pump is installed after the "wye". Refer to
Figures J4, J7, & J8.
Vent Loop
Macerator
Pump
Seacock
Single Wye
Figure J8: 268V Overboard Discharge Option
Waste Deck
Fitting
Chrome
Vent
Section J
Page 6
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