To find the right match for your toilet model, check our rubber flapper buying guide. Settling for a one-size-fits-all flapper can quickly turn your water-efficient toilet into a water waster.
Note: Replacing a flapper or fill valve is not a difficult process. However, if you do not feel comfortable performing the following steps, we recommend that you hire a licensed professional plumber to do the work for you.
- Adjustable wrench
- Flathead screwdriver
Steps for replacing your toilet flapper
Turn off water to tank at the customer shut-off valve to the house.
Flush the water in the tank. Note: the length of the flapper chain attached to flushing handle.
Remove old flapper.
Write down model of the toilet. Also note if toilet is a 1.6 gpf (gallon per flush) model. If the year of manufacture is before 1992, it most likely is not a 1.6 gpf toilet.
Take the old flapper and its information to a plumbing supply store. If your toilet is a 1.6 gpf model, purchase a flapper that keeps the flush at 1.6 gpf.
Be prepared to pay $2 to $10 for the correct flapper. Make sure you purchase the right flapper for your toilet. Installing the wrong flapper or a generic one could cause your toilet to use much more water than necessary.
Use our flapper buying guide to find the right match for your toilet model.
Install the new flapper. Adjust the chain as it was before you removed the old on. Turn on water and perform a test flush. Make water level and chain adjustments if needed.
To replace the fill valve in your toilet, follow the instructions found in the packaging you purchased.