Replacing a toilet fill valve is a simple plumbing repair that can be completed in a few minutes with the right tools and materials. A fill valve is a device that controls the flow of water into the toilet tank. When the water level in the tank drops, the fill valve opens to allow more water to flow in. Once the tank is full, the fill valve closes to stop the flow of water.
There are several reasons why you might need to replace a fill valve. One reason is if the valve is leaking. A leaking fill valve can waste a lot of water, which can lead to higher water bills. Another reason to replace a fill valve is if it is not working properly. A faulty fill valve can cause the toilet to run continuously or to not fill up properly.