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4800 SERIES VACUFLUSH TOILETS
TOILET SYSTEM COMPONENTS
A VacuFlush 4800 series toilet is part of a total
sanitation system that includes a vacuum source and
usually a holding tank. Because of the wide variation
of boat types and models, Dometic produces a wide
range of vacuum-generating components, holding
tanks and accessories. The VacuFlush system diagram
(above) provides a general orientation to a typical
vacuum sanitation system.
Vacuum Source: A variety of Dometic vacuum sources
provide vacuum energy to move the waste from the
toilet to the holding tank. All consist of a vacuum
storage reservoir and vacuum pump. These can be
separate or combined units (vacuum generators).
Holding Tanks: Many boats are equipped with a
holding tank, and many of those are SeaLand holding
tank systems. SeaLand tanks are available in many
capacities, and can include pre-installed vacuum
generator, tank level monitor, discharge pump,
and other accessories to enhance the comfort and
convenience of marine sanitation.
J-Series
Vacuum
Generator
S-Series
Low-profile
Vacuum
Generator
28HTS-T
Holding
Tank
All boats with xed toilets in U.S. waters and in the waters of some other countries are required to have an
operable marine sanitation device (MSD). The VacuFlush vacuum sanitation system, when installed in a boat, is
a holding tank or Type III system as dened by the U.S. Coast Guard. Type III systems permit operation of the
toilet without direct discharge of untreated waste after every ush. Type III systems can be discharged at marina
dockside pump-out stations or, if in coastal waters, a minimum of three miles offshore. Overboard discharge
capability must remain secured while within the three-mile limit. The overboard discharge pump is activated
by a keyed switch in the toilet compartment. This key should be removed at all times except when discharge
pump is operating.
Sewage from any source should not be discharged directly into our waters. If you are interested in learning more
about this issue, please visit our website at www.DometicSanitation.com.
MARINE SANITATION REGULATIONS
Flush
Switch/
Vacuum
Status
Panel
Tank Monitor
Panel
Deck
Discharge
Vent Filter
Vent Fitting
Discharge
Pump
Overboard
Discharge
Holding Tank System
Vacuum
Generator
Vacuum
Toilet