Got A Toilet That Keeps Running? It Might Not Be The Fill Valve
Your toilet only has a few parts that need to move or control the water flow. Among these components, the fill valve is a component failure point. The fill valve monitors the water level in the tank, refilling when necessary to keep the tank ready for the next flush. A faulty fill valve is a common suspect when your toilet won't stop running.
Unfortunately, many homeowners assume that the fill valve is the only reason that a toilet might keep running.