Silverton 33C - Marine Sanitation System

SYSTEM OPERATIONS-55
for approximately 30 to 90 seconds until the system
reaches the required operating vacuum level. Toi-
let waste, both liquid and solid, is removed by the
vacuum energy and water combination to a Waste
Tank having a capacity of forty (40) gallons (The
Mechanical Layout in the Schematics Section of this
Owner’s Manual shows the location of the Tank).
This waste is stored in the Waste Tank until pumped
out at a proper facility. The photo below shows
the Waste Tank. It is located under the Forward
Stateroom.
The Waste Tank is equipped with an electronic Waste
Level Gauge, which monitors the volume of waste in
the tank for your convenience in determining when
pump-out is required.
Maintenance of your Vacu-Flush Sanitation System
consists of periodic cleaning of the toilet bowl with a
mild nonabrasive cleaner. The Waste Tank should
be thoroughly rinsed after each pump-out and a
sanitation system deodorizer should be added to the
Waste Tank by fl ushing through the toilet.
DO NOT use chlorine-based or caustic clean-
ing agents or chemicals, such as drain opening
products, in your SeaLand Vacu-Flush Sanitation
System. Use of these products may cause seri-
ous damage to the system’s seals and hoses.
All vessels with fi xed toilets that are operated on the
waterways of the United States and some foreign
countries are required to be equipped with an oper-
able Marine Sanitation Device (MSD). The Marine
Sanitation System in your 33C is a Waste Tank
System, defi ned by the United States Coast Guard
as a Type III System. Type III Systems permit op-
eration of the toilet without the direct discharge of
untreated waste after every fl ush. Type III Systems
can be discharged at marina dockside pump-out sta-
tions or, if in coastal waters, at least three (3) miles
offshore.
NOTE: Overboard discharge capability must remain
inoperative while within the 3 mile limit. This is ac-
complished by closing the macerator discharge thru-
hull valve (Refer to the Mechanical Layout Schematic
in the Schematic Section of this Owner’s Manual for
the location of the valve).
Your 33C is equipped with one of the following Ma-
rine Sanitation Systems, depending on the option
you chose from your Silverton Dealer at the time of
purchase:
Vacu-Flush Toilet
Quiet-Flush Electric Toilet (Fresh Water)
Electric Toilet (Raw Water)
SeaLand Vacu-Flush Toilet
This system is operated by vacuum, combined with
a small quantity of water supplied by the pressurized
fresh water system (approximately one (1) pint per
fl ush) and is controlled by DC Electrical Power. Each
toilet is equipped with an integral vacuum breaker
that prevents a backfl ow of contaminated water into
the potable water supply. Vacuum energy, supplied
by the Vacuum Pump, is stored in a Vacuum Tank
and is monitored to maintain a certain level. The
Vacuum Pump is controlled by an electrical breaker
switch, located on the DC Electrical Panel (Refer to
the Electrical Pages of this section in this Owner’s
Manual for the location of the switch). As the toi-
let is fl ushed, vacuum energy is depleted and the
Vacuum Pump will automatically activate to restore
the required level. The Vacuum Pump will operate
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MARINE SANITATION SYSTEM