Toto DuoFit WT173M Installation And Owner's Manual page 15

Adjusting the Water Level in the Tank
1) Follow the procedure for removing the flush valve.
2) Disconnect the flexible hose from the fill valve.
3) Pull the hook toward you, slide the main unit up, and then remove the fill valve
main unit.
4) Turning the screw clockwise will raise the water level.
5) Turning the screw counterclockwise will lower the water level.
6) The water level must be 1-3/8" (35 mm) below the overflow pipe.
7) To install, follow the procedure
in reverse to return the fill valve to
its original position.
Flexible
hose
Water level
Overflow pipe
1) Close the water shutoff valve, and then remove
the fill valve as described above.
2) As shown in the figure, disassemble the fill
valve, and then either clean the filter with water
or use a brush to clean any dirt from it.
3) To install, follow the procedure in reverse to
return the fill valve to its original position.
SERVICING PROCEDURES
1-3/8"
(35mm)
Fill Valve
Cleaning the Filter of the Fill Valve
15
Screw