Kohler REACH K-3856T-S Installation Instructions Manual page 6

To lower water level: Move water cup down to a proper
height and rotate screw anticlockwise to achieve the desired
water level. (Refer to float adjustment instructions.)
To elevate water level: Rotate screw clockwise and raise
float to the desired water level. Elevate water cup to a proper
position as well. (Refer to float adjustment instructions.)
Fasten the snap along "CLOSE" direction.
CLOSE
Float adjustment instructions: Make sure the height of
surface E is 2-4mm lower than surface G.
1182020-T01-A
E G 2mm
-6-
Screw
b
c
d
Screw
E
Float
G
Water Cup
e