Toilet Fill Valve: The fill valve brings water into the tank after the toilet is flushed and stays on until the tank refills. Any time water exits the tank (such as when a flapper is leaking), the fill valve will turn on in order to maintain the water level. Toilet Flapper:
The flapper sits on the flush valve and is connected to the tank lever by a chain. When the toilet is flushed, the flapper lifts up off the flush valve seat and allows the water to exit the tank. Toilet Flush Valve: When the toilet is flushed, water flows from the tank into the bowl through the flush valve.
This is an overview of how a toilet works. First, let’s go over the different parts of the toilet. The handle, tank, bowl, fill valve, flush valve, overflow tube, flapper/seal. When the handle is pushed, it pulls up on a chain connected to a flapper or seal. The flapper lifts and releases the tank water down the flush valve into the bowl. The water then goes through the trap and into the main drain.