Dometic 4806 Benutzerhandbuch

7

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 flush 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.)  

Maintenance intervals and normal parts replacement vary widely depending on factors such as frequency of 

system use, quality of flushing water, etc. The chart below is intended as a general guide in keeping your sanitation 

system 100% ready for use at any time.

Check all clamped hose joints below 

water line for leaks.

Monthly

–

Check filter screen in water valve.

After first year of service, 

then as needed if water flow 

is noticeably slower.

Screen is located inside water 

valve inlet.

Replace vent filter (if installed in holding 

tank vent line).

Annually

–

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 flush ball seal and flush ball  

(if required).

Every three years

See toilet parts list for  

replacement kit part number.

Boats operating in remote waters should carry the following parts on board.

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.