How to Install an Overflow Drain on a Bathtub: A Step-by-Step Guide

Installing an overflow drain on your bathtub is a relatively simple task that can be completed in a few hours. This guide will walk you through the process, from gathering the necessary materials to cutting the hole in the tub. By the end of this article, you’ll have a new overflow drain that will keep your bathtub water-free and your bathroom looking its best.

Here are the steps involved in installing an overflow drain on your bathtub:

1. Gather the necessary materials.
2. Cut the hole in the tub.
3. Install the overflow drain.
4. Test the drain.

Let’s get started!

Step Tools Instructions
1 Plumber’s putty, screwdriver, adjustable wrench, hacksaw, pencil, tape measure Locate the overflow drain in the bathtub. It is usually located in the center of the back of the tub. Mark the location of the drain with a pencil.
2 Hacksaw Cut a hole in the drywall behind the bathtub large enough to fit the overflow drain.
3 Plumber’s putty, screwdriver, adjustable wrench Apply plumber’s putty around the edge of the overflow drain. Insert the overflow drain into the hole in the drywall. Tighten the nuts on the overflow drain with an adjustable wrench.
4 Tape measure, pencil Measure the distance from the bottom of the overflow drain to the top of the bathtub. Cut a piece of copper pipe that is the same length as the measurement.
5 Plumber’s glue, copper pipe Apply plumber’s glue to the end of the copper pipe. Insert the copper pipe into the overflow drain.
6 Screwdriver Secure the copper pipe to the overflow drain with a screwdriver.
7 Water Turn on the water to the bathtub and check for leaks.

How to Install Overflow Drain on Bathtub?

1. Tools and Materials

  • Plumbing tools
  • Overflow drain kit
  • Tub spout
  • Plumber’s putty
  • Silicone sealant
  • Tape measure
  • Pencil
  • Level

2. Preparation

1. Turn off the water supply to the bathtub.
2. Drain the water from the bathtub.
3. Remove the old overflow drain, if necessary.
4. Clean the bathtub drain opening.

3. Installation

1. Apply plumber’s putty to the bottom of the overflow drain.
2. Insert the overflow drain into the bathtub drain opening.
3. Secure the overflow drain with the provided screws.
4. Apply silicone sealant around the overflow drain.
5. Allow the silicone sealant to dry completely.
6. Reattach the tub spout.

4. Testing

1. Turn on the water supply to the bathtub.
2. Check for leaks around the overflow drain.
3. If there are no leaks, the overflow drain is installed correctly.

Installing an overflow drain on a bathtub is a relatively simple task that can be completed in a few steps. By following the steps in this guide, you can ensure that the overflow drain is installed correctly and that your bathtub is properly drained.

Here are some additional tips for installing an overflow drain on a bathtub:

  • Make sure that the overflow drain is the correct size for your bathtub.
  • Use a level to make sure that the overflow drain is installed straight.
  • Apply a generous amount of plumber’s putty to the bottom of the overflow drain. This will help to create a watertight seal.
  • Allow the silicone sealant to dry completely before using the bathtub.

By following these tips, you can install an overflow drain on your bathtub with ease.

3. Installation

To install an overflow drain on a bathtub, you will need the following tools and materials:

  • A new overflow drain
  • Plumber’s putty
  • Silicone sealant
  • A hacksaw
  • A screwdriver
  • A drill
  • A 1/2-inch drill bit
  • A 1/2-inch pipe wrench
  • A bucket
  • A wet/dry vacuum

Step 1: Prepare the bathtub

The first step is to prepare the bathtub for the installation of the overflow drain. This involves removing the old overflow drain, if there is one, and cleaning the bathtub drain opening.

To remove the old overflow drain, you will need to use a hacksaw to cut the old drain off of the bathtub drain pipe. Be careful not to damage the bathtub drain pipe. Once the old drain is removed, clean the bathtub drain opening with a wet/dry vacuum.

Step 2: Apply plumber’s putty

The next step is to apply plumber’s putty to the bottom of the new overflow drain. This will help to seal the drain and prevent leaks.

To apply the plumber’s putty, simply squeeze a small amount of putty onto the bottom of the overflow drain. Then, use your finger to spread the putty around the drain until it is evenly covered.

Step 3: Insert the overflow drain

The next step is to insert the overflow drain into the bathtub drain opening. Make sure that the overflow drain is inserted all the way into the opening.

Once the overflow drain is inserted, use a screwdriver to tighten the screws on the overflow drain. This will secure the drain in place.

Step 4: Secure the overflow drain with plumber’s putty and/or silicone sealant

To further secure the overflow drain, you can apply plumber’s putty and/or silicone sealant around the drain. This will help to prevent leaks.

To apply the plumber’s putty, simply squeeze a small amount of putty around the drain. Then, use your finger to spread the putty around the drain until it is evenly covered.

To apply the silicone sealant, simply apply a bead of sealant around the drain. Then, use your finger to smooth out the sealant.

Step 5: Connect the overflow drain to the tub spout

The final step is to connect the overflow drain to the tub spout. This is usually done by using a hose clamp.

To connect the overflow drain to the tub spout, simply attach the hose clamp to the overflow drain and the tub spout. Then, tighten the hose clamp until it is secure.

Testing

Once the overflow drain is installed, you should test it to make sure that it is working properly. To do this, turn on the water supply to the bathtub and check for leaks around the overflow drain. You should also test the overflow drain by pouring water into the bathtub. The water should drain properly through the overflow drain.

Installing an overflow drain on a bathtub is a relatively simple task that can be completed in a few hours. By following these steps, you can install an overflow drain that will keep your bathtub water-free and your bathtub looking its best.

How do I install an overflow drain on a bathtub?

1. Gather your tools and materials. You will need:

  • A new overflow drain kit
  • A hacksaw
  • A screwdriver
  • A putty knife
  • Plumbing sealant
  • A bucket
  • A wet/dry vac

2. Turn off the water supply to the bathtub. Locate the shutoff valve for the bathtub and turn it clockwise until it is completely closed.

3. Drain the water from the bathtub. Place a bucket under the drain and open the drain. Allow all of the water to drain out of the bathtub.

4. Remove the old overflow drain. Use a hacksaw to cut the old overflow drain off of the bathtub. Be careful not to damage the bathtub.

5. Clean the bathtub drain. Use a putty knife to remove any old sealant from the bathtub drain. Clean the drain with a damp cloth.

6. Apply plumbing sealant to the bathtub drain. Apply a thin layer of plumbing sealant around the edge of the new overflow drain.

7. Install the new overflow drain. Insert the new overflow drain into the bathtub drain. Use a screwdriver to tighten the screws that secure the overflow drain in place.

8. Turn on the water supply to the bathtub. Open the shutoff valve for the bathtub and allow the water to flow into the bathtub.

9. Check for leaks. Look around the overflow drain for any leaks. If you see any leaks, tighten the screws on the overflow drain until the leaks stop.

10. Clean up the mess. Use a wet/dry vac to clean up any water or debris that was created during the installation process.

What is the purpose of an overflow drain on a bathtub?

An overflow drain is a safety feature that prevents water from overflowing from the bathtub. If the water level in the bathtub gets too high, the overflow drain will open and allow the water to drain out. This prevents the bathtub from overflowing and flooding the bathroom.

How do I know if my bathtub needs an overflow drain?

If your bathtub does not have an overflow drain, it is not up to code. You should have an overflow drain installed on your bathtub to comply with building codes and to protect your home from flooding.

Can I install an overflow drain on my own?

Yes, you can install an overflow drain on your own. However, it is important to follow the instructions carefully to ensure that the overflow drain is installed correctly. If you are not comfortable doing the installation yourself, you can hire a plumber to do it for you.

What are the different types of overflow drains?

There are two main types of overflow drains:

  • Pop-up drains: These drains are the most common type of overflow drain. They have a small lever that can be used to open and close the drain.
  • Spill-over drains: These drains do not have a lever. They simply allow water to overflow from the bathtub when the water level gets too high.

Which type of overflow drain is best for me?

The best type of overflow drain for you depends on your personal preferences. Pop-up drains are more convenient because they can be opened and closed easily. Spill-over drains are less likely to clog, but they can be more difficult to clean.

How much does it cost to install an overflow drain?

The cost of installing an overflow drain varies depending on the type of drain and the complexity of the installation. The average cost of installing an overflow drain is between $100 and $200.

What are the benefits of having an overflow drain on my bathtub?

There are many benefits to having an overflow drain on your bathtub, including:

  • Prevents flooding: An overflow drain can prevent your bathtub from overflowing and flooding your bathroom.
  • Protects your home: An overflow drain can protect your home from water damage in the event of a plumbing leak.
  • Convenient: Pop-up drains are convenient because they can be opened and closed easily.
  • Easy to clean: Spill-over drains are easy to clean because they do not have a trap.

    In this blog post, we have discussed how to install an overflow drain on a bathtub. We have covered the steps in detail, from preparing the bathtub to attaching the overflow drain. We have also provided some tips and tricks to help you get the job done correctly.

We hope that this blog post has been helpful and that you are now able to install an overflow drain on your bathtub with confidence. If you have any questions, please feel free to leave a comment below.

Author Profile

Liana Farrell
Liana Farrell
Liana Farrell is the owner of toiletty.com. She is a mom of two and is very passionate about home improvement.

Liana has ten years of home improvement experience, and in her own words, she said: “I love improving the home, and I’m very passionate about keeping the home in the best possible condition. I love it!”

Liana Farrell balances beauty and functionality when she goes about her home improvement jobs.