How to Replace a Toilet Flapper

Written by: Brent Holland
DIY Specialist
(800) 375-3403

A toilet flapper is the rubber device in your toilet tank that seals water in the tank and allows it to exit the tank when you flush. If your toilet is running for longer than usual after a flush, the toilet flapper probably needs to be replaced.

Tools / Materials:

- New Toilet Flapper

Step by Step Instructions

How to Fix a Toilet Flapper: Step 1

Step 1:

Turn off the water supply.

How to Fix a Toilet Flapper: Step 2

Step 2:

Drain the water from the tank by holding down the toilet lever.

How to Fix a Toilet Flapper: Step 3

Step 3:

Pull the chain from the lever arm.

How to Fix a Toilet Flapper: Step 4

Step 4:

Disconnect the flapper hinges from the fill tube, and remove the old flapper.

How to Fix a Toilet Flapper: Step 5

Step 5:

Install the new flapper. Start by connecting the new flapper hinges to the fill tube.

How to Fix a Toilet Flapper: Step 6

Step 6:

Connect the pull chain to the toilet lever. You may need to adjust the chain length.

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