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Writer's pictureJustin Shook

Say Goodbye to Your Leaky Toilet: A Step-by-Step Guide on How to Replace a Toilet Flapper

Updated: Sep 26, 2023




A toilet flapper is a small but essential component of your toilet. It is responsible for regulating the flow of water from the tank to the bowl, ensuring that your toilet flushes correctly. Over time, the flapper can wear out, resulting in leaks, phantom flushes, and other issues. If you're experiencing any of these problems, it's likely time to replace your toilet flapper.


Replacing a toilet flapper may seem like a daunting task, but it's actually a relatively simple process that can be done in just a few steps. In this article, we'll walk you through the process of replacing a toilet flapper, step-by-step. Don’t want to deal with it? Contact Premium Rooter Plumbing Services!




Step 1: Turn off the water supply

The first step in replacing your toilet flapper is to turn off the water supply. Locate the valve behind the toilet and turn it clockwise until it's fully closed. This will prevent any water from flowing into the tank while you're working on it.


Step 2: Empty the tank

Next, you'll need to empty the tank. Flush the toilet and hold the handle down to drain as much water as possible from the tank. If there is any excess water left in the tank, you can use a sponge or towel to soak it up.


Step 3: Remove the old flapper

Once the tank is empty, you can remove the old flapper. The flapper is located at the bottom of the tank, attached to a chain that connects it to the toilet handle. To remove the flapper, simply unhook the chain from the handle and slide the flapper off the plastic pegs that hold it in place.


Step 4: Choose the right replacement flapper

Before you install the new flapper, you need to choose the right replacement. Flappers come in different sizes and shapes, so it's important to choose one that's the right fit for your toilet. Look for a flapper that matches the brand and model of your toilet, or take the old flapper with you to the hardware store to ensure you get the right replacement.


Step 5: Install the new flapper

Now it's time to install the new flapper. Start by sliding the flapper over the plastic pegs in the bottom of the tank. Then, attach the chain to the flapper and adjust it so that there's just a little bit of slack. You don't want the chain to be too loose or too tight, as this can affect the flapper's performance.


Step 6: Turn on the water supply

With the new flapper installed, you can turn the water supply back on. Turn the valve counterclockwise to open it, and allow the tank to fill up with water. Check for any leaks around the base of the tank or the connections between the tank and the bowl. If you notice any leaks, tighten the connections or adjust the flapper as necessary.


Step 7: Test the flush

Finally, it's time to test the flush. Give the toilet a few test flushes to make sure that the new flapper is working correctly. If you notice any issues, such as a weak flush or water leaking from the tank, you may need to adjust the flapper or seek assistance from a professional plumber.


Replacing a toilet flapper is a simple and affordable fix for many common toilet problems. By following these steps, you can replace your flapper quickly and easily, saving yourself time and money on costly repairs. If you're not comfortable replacing the flapper yourself, don't hesitate to contact a licensed plumber for assistance. With the right tools and knowledge, you can keep your toilet running smoothly for years to come.


(Disclaimer: Premium Rooter Plumbing Services takes no responsibility for any and all damages or injuries to persons or property resulting from following the steps in this article. For professional installations, contact Premium Rooter Plumbing Services.)

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