Remove the lock nut securing the old fill valve to the tank using an adjustable wrench or pliers. Gently lift the old fill valve out of the tank. Inspect the old valve to identify the cause of the malfunction.
Step 3 · Remove the Old Fill Valve
Remove the lock nut securing the old fill valve to the tank using an adjustable wrench or pliers. Gently lift the old fill valve out of the tank. Inspect the old valve to identify the cause of the malfunction.
