How to Flush the Fill Valve on KOHLER Two-Piece Toilets
Why Home Improvement Stack Exchange recommends it
DIY Stack Exchange answerers point people to it when a toilet fill valve leaks, trickles or won't refill and needs flushing or a look at the cap internals.
Recommended by 2 people across 2 different months, 2016 to 2022.
What it is
A short KOHLER manufacturer tutorial showing how to flush debris out of the fill valve on a two-piece toilet using only a plastic cup. It shows how to remove the cap, let water run to clear the valve, and put it back together.
What people said
Recommends Iggy · 2016-03 · Home Improvement Stack Exchange · on “No water comes out of the toilet's refill tube”
The pin should be your problem. You're right, it does go behind the diaphragm, See this video at 58-seconds & 1:30 for an example [this video] , & inside the center of the cap.
Recommends Ed Beal · 2016-08 · Home Improvement Stack Exchange · on “Small trickle into toilet bowl, flap and valve seem fine”
A leaking valve can also cause this kind of leakage rust, scale & small gravel can also cause the valve to leak. Some valves can be easily disassembled with the water off. A cup or glass put over the top and the valve turned on to flush the debris out. Reassemble with the water off and see if this helps. The float adjustment would be a quicker check as @jack suggested+. a video on how to [this video] flush a kohler fill valve. this is really quick and just 1 of several ways to clear the debris out. Some also have 4 screws on the top those you need to take apart and flush with the cup. some have tabs that when pressed in release the cap. Not all valves can be cleaned and some like fluid master can
Cites Arjun Garg · 2022-07 · Home Improvement Stack Exchange · on “Toilet Fill Valve Leaking Around Top?”
I have a Kohler 2-piece toilet with what I think is a leaking fill valve. Basically the toilet wasn't flushing. When I opened it up, I saw the valve tubing had become detached from the canister flush valve: [LINK] So I turned off the main valve, re-inserted the tubing, then turned the valve back on. Water began flowing normally into the tank. However, after flushing the tank once, water began leaking out of the red cap at the top of the fill valve, rather than coming out of the tubing. If I pull the lever up, the leak stops, but once I release the water starts leaking again. For whatever reason the tank never fills and the water keeps leaking forever. Now, if I turn off the main valve and tu