How to Make the Flush Stronger on a Kohler Toilet

Float Ball Models

• 1

  Remove the lid from your tank to expose the hollow overflow tube in the middle. A line on the side of the overflow tube indicates the required water level.

• 2

  Locate the screw on the head of the inlet valve. The inlet valve replenishes water inside the tank. The inlet valve is generally in the left corner of the tank.

• 3

  Use a slotted screwdriver to turn the screw counterclockwise. Each counterclockwise turn of the screw raises the water level inside the tank. Begin with a half-turn only.

• 4

  Flush your toilet, and note the adjusted water level. If necessary, continue to adjust the water level until the level arrives at the line on overflow pipe.

Float Cup Models

• 5

  Set the tank lid aside. Locate the water level line near the top of the overflow tube. This hollow tube stands toward the middle of the tank.

• 6

  Look for a screw on the inlet valve arm. The inlet valve stands to the left of the overflow tube. If the inlet valve lacks a screw on its arm, look for a spring clip on the side of the float cup.

• 7

  Pinch the sides of the screw, and rotate it counterclockwise one-half turn. Otherwise, pinch the top and bottom of the spring clip and raise the the float cup one-half inch.

• 8

  Flush the toilet, and check the new water level against the line on the overflow tube. To raise the water lever farther, continue the adjustment in increments.