The fill valve conversion kit, part number 84499, produced for Kohler 3.5 gpf toilets includes a built-in flow control.
- The fill valve comes factory set for the 3.5 gpf but can be adjusted to allow for more gallons per flush by rotating the flow control to the vertical position. (We do not have any information on how much more water is being flushed).
- If the user chooses to increase the water flow, it may increase the possibility of splashing and overflow during the flush.
The pictures below show the nut in both the horizontal and vertical position.