How to Replace a Toilet Fill Valve
How to Replace a Toilet Fill Valve When your toilet keeps cycling on its own, the fill valve has failed. Mike Torres05/07/2026 · 4 min readDifficulty: BeginnerCost: $15–$25 TL;DR Fill valve failure causes toilet to cycle randomly or run continuously. Replace with universal Fluidmaster ($15) in 30 minutes. Same procedure for all toilet brands. Time