Winterizing; Maintaining The System; Spare Parts - Dometic SeaLand VacuFlush 4800 Series Owner's Manual

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 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
never use automotive-type antifreeze in freshwater systems.
manual.)

MainTaininG The SYSTeM

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.
Maintenance Procedure
Check all clamped hose joints below
water line for leaks.
Check filter screen in water valve.
Replace vent filter (if installed in
holding tank vent line).
Replace duckbill valves in vacuum
generator or vacuum pump.
Replace flush ball seal and flush ball
(if required).

SPare ParTS

Boats operating in remote waters should carry the following parts on board.
Description
Flush ball seal
Flush ball
Electric water valve
Vacuum switch kit
Duckbill valves
Service interval
Routi ne
After first year of service,
then as needed if water
flow is noticeably slower.
Majo R syst e M M ai ntenanc e
Every three years
Every three years
4800 series vacuum toilet. See parts list.
4800 series vacuum toilet. See parts list.
4800 series vacuum toilet. See parts list.
Vacuum tank or vacuum generator. See parts list.
Vacuum pump or vacuum generator. See parts list.
Monthly
Annually
Where used
7
additional information
–
Screen is located inside
water valve inlet.
–
See vacuum generator or
vacuum pump parts list
for replacement kit part
number.
See toilet parts list for
replacement kit part
number.