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ROUGHINGĆIN AND INSTALLATION
CONSIDERATIONS
Kohler low profile, oneĆpiece toilets are perfect for remodelĆ
ing and new installations. Refer to the roughingĆin drawĆ
ings Figs. #4 - #9.
Always refer to your local codes and the installation inĆ
structions packed with the toilet.
KOHLER LOW PROFILE ONEĆPIECE TOILET
FEATURES
S OneĆpiece design offers contemporary styling.
S Elongated bowl offers a large water area for efficient
waste removal.
S NonĆoverflow design prevents the bowl from overflowing
if the toilet becomes clogged.
S Rialto, San Raphael, Cabernet, and Pillow Talk toilets
flush with 3.5 gallons of water for greater economy.
S TwistĆLock flush valves on new Rialto, San Raphael,
Cabernet, and Pillow Talk toilets offer ease of replaceĆ
ment with no tools.
S Siphon vortex action provides excellent flush and quiet
operation.
S Large water area in bowl aids in effective waste removal.
STARTĆUP AND OPERATION FOR RIALTO,
SAN RAPHAEL, CABERNET, AND PILLOW
TALK TOILETS
For most satisfactory operation of this toilet, 25 to 90 psi
working pressure is required at the fixture. A full 1/2" supĆ
ply stop (K-7653) is recommended. A plastic nut is proĆ
vided with the toilet and must be used to make the supply
connection to the toilet.
1. Water Level Adjustment: Refer to Fig. #10. Turn on
the water supply to the toilet and adjust the water level
in the tank to the Water Line mark on flush valve. To
raise the water level, turn the tank water level on float
valve counterclockwise. To lower the water level, turn
the screw clockwise.
2. Bowl Water Level Adjustment: Use the trip chain to lift
the flush ball in the tank slightly, to allow water to trickle
into the bowl until the water level in the bowl stops risĆ
ing. This is the "seal height" and should be noted for
subsequent adjustment. Flush the toilet and observe
the water level in the bowl after refill. If the water level is
Fig. #10
Adjusting the Float Valve
Seal Screw
Timing Screw
Tank Water Level
Screw
Slotted screw on
newer models
below seal height, turn the seal screw clockwise,
reflush the toilet and recheck the water level. Continue
adjustment until water stops entering the bowl just as
the seal height is reached.
If water continues to flow (in bowl) after water level
reaches seal height, turn seal screw counterclockwise
and reflush toilet. Continue adjustment until water
stops entering the bowl just as the seal height is
reached.
3. High Water Pressure Timing: Note: If toilet is installed
in an area with high water pressure (above 50 psi workĆ
ing pressure), the float valve should be timed. To time
the float valve hold the float rod and flush the toilet. After
the toilet has completed the flush, time the refill from reĆ
lease of rod to valve shut-off.
For K-3397-EB San Raphael, K-3378-EB Pillow
Talk, and K-3408-EB Cabernet. If the time is longer than
34 seconds, no adjustment is required. If time is under 34
seconds, turn timing screw clockwise and recheck timing.
Adjust timing screw until time is between 34 and 36 secĆ
onds. After timing the valve, recheck the bowl water level as
in step #2, to ensure that seal is maintained.
For K-3402-PB Rialto. If the time is longer than 26 secĆ
onds, no adjustment is required. If time is under 26 secĆ
onds, turn timing screw clockwise and recheck timing. AdĆ
just timing screw until time is between 26 and 28 seconds.
After timing the valve, recheck the bowl water level as in
step #2, to ensure that seal is maintained.