SeaLand 4700 Series VacuFlush Operation Manual - Manual (Page 9)

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SeaLand 4700 Series VacuFlush Toilet Maintenance/winterizing/service
7.2 VacuFlush system maintenance
Maintenance procedures vary widely and depend on factors such as frequency of use, quality of
flushing water, etc . The chart provides a general guideline for keeping your toilet system ready for
use at any time .
Maintenance procedure Service interval Notes
ROUTINE
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 —
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 flush ball seal and flush
ball (if required) .
Every three years See toilet parts list for replace-
ment kit part number .
7.3
Recommended spare parts
When operating boat or other vehicle in remote areas, keep the following spare parts on hand to
assure continuous toilet system operation .
Description Where used
Flush ball seal 4700 series toilet . See parts list .
Flush ball 4700 series toilet . See parts list .
Electric water valve 4700 series toilet . See parts list .
Vacuum switch kit Vacuum tank or vacuum generator . See parts list .
Duckbill valves Vacuum tank or vacuum generator . See parts list .
To order spare parts, refer to Customer Service section .
7.4 During extended periods of non-use
Toilet system sanitation hoses should be cleared if toilet will not be needed for an extended period of
time (more than two weeks) .
1 . Fill toilet bowl with water and add 4 oz . (120 ml) of liquid biodegradable laundry detergent
(should NOT contain bleach) .
2 . Open flush ball in Service Mode (see directions in Section 6 .5) . Press the “Add Water” switch
down, or raise flush handle up, until water stops flowing . Push Service Mode button to return to
Normal mode, then push again to return to Service Mode . Repeat “Add Water” process about
12 times . Return to Normal mode .
3 . Turn off water supply to toilet .
4 . Flush the toilet without water, allowing the vacuum pump to shut off after the flush . Repeat three
times . (This procedure will minimize any remaining water in the sanitation hoses .)
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