KOHLER toilets have a water level indicator located on the flush valve or on the tank wall. The water level is raised or lowered by adjusting the float on the fill valve. First, identify the type of fill valve in your toilet. Then, the steps below to adjust the water level in your tank.
Correct Low Water Level in Toilet Bowl. To correct low water level in your toilet bowl, ensure the rim feed hose in the toilet tank is connected to the flush valve.