ToolNest

ToolNest
Apr 11, 2025
How to Install a New Toilet - A Complete Step-by-Step Guide

Step-by-Step Guide on How to Install a New Toilet

If you're planning to update your bathroom or simply replace an old toilet, installing a new one can seem like a daunting task. But fear not! Installing a new toilet is not as complicated as it might seem. With a few tools, the right materials, and a little patience, you can complete this project by yourself. Let me walk you through the entire process of how I installed my new toilet.

1. Gather Your Tools and Materials

Before diving into the installation process, it’s essential to gather all the tools and materials you’ll need. Here’s what you’ll require:

  • New toilet (including toilet bowl, tank, and lid)
  • Toilet wax ring
  • Toilet bolts
  • Adjustable wrench
  • Plumber’s putty (optional)
  • Level
  • Rubber gloves
  • Bucket (to collect any water in the tank)
  • Caulk (for sealing the base)
  • Screwdriver

2. Shut Off the Water Supply and Remove the Old Toilet

The first step is to shut off the water supply to your toilet. This is usually done by turning the valve located behind the toilet clockwise. Next, flush the toilet to drain most of the water from the tank and bowl. You may need to use a sponge or towel to soak up any remaining water.

After that, use a wrench to remove the bolts securing the toilet to the floor. If the bolts are rusty, a little penetrating oil can help loosen them. Once the bolts are removed, carefully lift the toilet off the flange and set it aside. Don’t forget to dispose of the old wax ring.

3. Prepare the Flange

Inspect the toilet flange, which is the part that connects the toilet to the sewer pipe. If the flange is damaged, it will need to be replaced before installing the new toilet. Clean the flange to ensure there’s no old wax or debris, as this can affect the installation of the new wax ring.

4. Install the New Wax Ring

Now it’s time to install the new wax ring. Place the wax ring on the flange, making sure it’s centered. You may want to use a little plumber’s putty on the bottom of the toilet’s base for an extra seal. However, be cautious not to overdo it, as too much putty could affect the fitting of the toilet.

5. Position and Secure the Toilet

Lift the new toilet and carefully lower it onto the flange, aligning the holes on the toilet’s base with the bolts on the flange. Press down gently to ensure a secure seal. If the toilet is properly aligned, the wax ring should compress and create a tight seal between the toilet and the flange.

Now, secure the toilet by tightening the bolts. Use an adjustable wrench to make sure the bolts are snug, but avoid overtightening as this could crack the porcelain. Once secured, check that the toilet is level by using a level tool.

6. Connect the Water Supply

Next, connect the water supply line to the bottom of the toilet tank. Use an adjustable wrench to tighten the connection, being careful not to overtighten, as this could crack the tank. Once connected, turn the water supply back on by rotating the valve counterclockwise.

7. Test for Leaks

Once the water supply is on, flush the toilet a few times to check for leaks. If you notice any water pooling around the base, you may need to tighten the bolts a bit more or adjust the wax ring. Also, inspect the water supply connection for any leaks. If there are none, congratulations – your toilet installation is a success!

8. Caulk the Base

To give your toilet a finished look and prevent water from leaking under the toilet, apply a thin line of caulk around the base. Be sure to leave a small gap in the caulk at the back to allow any potential leaks to escape. This will also make cleaning the area around the toilet easier.

9. Final Touches

Once your toilet is installed, check that everything is functioning correctly. If you’ve added a toilet seat, ensure it’s properly aligned and secure. You can also consider adding some bathroom accessories, like a toilet paper holder or a fresh bathroom rug, to make your bathroom feel complete.

Tips and Troubleshooting

Here are some useful tips that can help make your toilet installation easier:

  • Take your time with the flange and wax ring to ensure a tight seal. A poor seal can cause leaks over time.
  • If your new toilet is wobbling, double-check the bolts and the level of the toilet. You may need to adjust the bolts or add a shimming material.
  • Ensure the toilet tank is properly aligned before tightening bolts. This will prevent the toilet from leaning or having an unsteady fit.

While this process may seem intimidating, it is absolutely doable with a little patience and the right tools. Installing a toilet can save you money on professional plumbing services and provide a sense of accomplishment. Plus, you get to enjoy your newly installed toilet right away! So, go ahead and tackle your next bathroom renovation project with confidence.