SeaLand 4800 Series VacuFlush - Manual (Page 10)

10
SeaLand VacuFlush Toilet Maintenance/Winterizing/Service
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). Hold the Add Water switch down
for about two minutes. Release the Add Water switch and return the Service Mode switch to the
Normal position .
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 .)
5 . Turn off power to the vacuum pump .
6. Completely pump out holding tank.
If system will be subjected to freezing temperatures, please follow above procedure, then winterize
system as described in this manual .
TURN OFF ELECTRICITY AND WATER TO TOILET IF IDLE FOR LONG PERIODS OF TIME
If people will not be using the boat for a long time (vacation, maintenance, off-season, etc .), or in
the event of a long electrical power interruption, electrical power and water supply to the toilet and
vacuum generator should be shut off .
7.5 Clearing blockage in toilet base
1 . Turn off water to the toilet .
2. Open the flush ball in Service Mode.
3. Pull the foreign material from the 1-inch diameter orifice at the bottom of the base or, using a
small diameter blunt rod, attempt to push the blockage through the orifice.
7.6 Locating potential vacuum leaks in base assembly
The VacuFlush toilet is part of a vacuum system that includes a vacuum pump and vacuum tank, or
a vacuum generator and discharge plumbing lines. If a vacuum leak is suspected, special equipment
will isolate the source of the leak. If the toilet is determined to be the source of the leak, there are
three possible areas to investigate:
1. Flush ball and flush ball seal. See Problem 12 in Troubleshooting Guide.
2 . O-rings on the rotor shaft .
3 . O-rings around bottom of toilet base assembly .
Sources 1 and 2 will require the base assembly to be removed from the toilet and partially
disassembled .
7.7 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.