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WINTERIZING
At the end of each season, the VacuFlush toilet system should be winterized for storage. The following procedure
should be used:
1. Pump out holding tank.
2. Thoroughly ush system with fresh water.
3. Drain freshwater tank.
4. Add freshwater antifreeze to freshwater tank.
5. Flush freshwater water antifreeze and water mixture through toilet and into the waste holding tank. Each
installation is different, so amounts may vary. User discretion is required to assure adequate protection.
6. Empty holding tank.
NOTE: Use nontoxic antifreeze designated for potable water systems. (See vehicle owner’s manual.)
Never use automotive-type antifreeze in freshwater systems.
MAINTAINING THE SYSTEM
Maintenance intervals and normal parts replacement vary widely depending on factors such as frequency of
system use, quality of ushing water, etc. The chart below is intended as a general guide in keeping your sanitation
system 100% ready for use at any time.
Maintenance Procedure Service Interval Additional Information
ROUTINE
Check all clamped hose joints below
water line for leaks.
Monthly
–
Check lter screen in water valve.
After rst year of service,
then as needed if water ow
is noticeably slower.
Screen is located inside water
valve inlet.
Replace vent lter (if installed in holding
tank vent line).
Annually
–
MAJOR SYSTEM MAINTENANCE
Replace duckbill valves in vacuum
generator or vacuum pump.
Every three years
See vacuum generator or
vacuum pump parts list for
replacement kit part number.
Replace ush ball seal and ush ball
(if required).
Every three years
See toilet parts list for
replacement kit part number.
SPARE PARTS
Boats operating in remote waters should carry the following parts on board.
Description Where Used
Flush ball seal 4800 series vacuum toilet. See parts list.
Flush ball 4800 series vacuum toilet. See parts list.
Electric water valve 4800 series vacuum toilet. See parts list.
Vacuum switch kit Vacuum tank or vacuum generator. See parts list.
Duckbill valves Vacuum pump or vacuum generator. See parts list.