2. Replace the Fill Valve If adjusting the float doesn’t do the trick, you may have a leaking fill valve might be beyond saving. Replacing it is straightforward but has a few basic steps.

Turn off the water supply To turn off the water supply to the toilet, rotate the shutoff valve clockwise. This valve is typically found on the wall behind the toilet or on the floor. Empty the water ...

A moaning toilet is likely caused by a faulty fill valve, commonly known as a ballcock or float valve. Use this guide to replace it with a new one.

Next, remove the tank lid. Inside you’ll should see the main parts responsible for your toilet's water control: the flapper chain, flapper, overflow tube, a ball float or float cup, and fill valve.

My toilet's fill valve is a Fluidmaster cup-style model. To flush it first reach into the tank with your right hand. Next lift the float up with it resting on top of your hand.

If it has warped, it will never fit the flush valve properly again, so you have to replace it. They’re cheap, and you can purchase universal flappers that will work in just about any toilet.

3. Damaged Fill Valve Remove the lid off of the toilet tank and look inside, typically on the left side. If you see the fill valve is not lined up right or is broken, it will need to be repaired.

Knowing how to fix a leaking toilet can help save you time and money. Learn more about our solutions and when to call a plumbing professional.

2. Replace the Fill Valve If adjusting the float doesn’t do the trick, you may have a leaking fill valve might be beyond saving. Replacing it is straightforward but has a few basic steps.

There are three likely culprits that can cause a toilet to run continuously — the float, flapper, or fill valve. Luckily, each is easy to replace.