How to Replace a Toilet Flapper

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.

Step 1

Turn off the water supply.

Step 2

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

Step 3

Pull the chain from the lever arm.

Step 4

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

Step 5

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

Step 6

Assemble the new universal valve. Make any necessary adjustments to the new valve.