How To Change Bathtub Drain Pipe

How to Change a Bathtub Drain Pipe

Replacing a bathtub drain pipe is a common plumbing project that homeowners can tackle with the right tools and knowledge. This guide will walk you through the process step-by-step, providing clear instructions and helpful tips to ensure a successful installation.

Gather Your Supplies

Before starting any plumbing work, it's essential to have the necessary tools and materials on hand. Here is a list of items you will need:

New bathtub drain pipe (choose a size and material that matches your existing system)
Adjustable wrench
Channel-lock pliers
Plumber's putty
Teflon tape
Bucket or container to catch water
Screwdriver
Safety glasses
Gloves

Step-by-Step Instructions

Follow these steps to replace your bathtub drain pipe:

1. Turn Off the Water Supply

Locate the shut-off valve for the bathtub and turn it off completely. This will prevent water from flowing into the drain pipe during the replacement process.

2. Drain the Bathtub

If there is any water remaining in the bathtub, use a bucket or container to drain it.

3. Disconnect the Existing Drain Pipe

Underneath the bathtub, you will find the drain pipe connected to the drain assembly. Using your adjustable wrench or channel-lock pliers, loosen the connection between the drain pipe and the assembly.

4. Remove the Drain Assembly

Once the drain pipe is disconnected, unscrew or unclip the drain assembly from the bathtub. This may require using a screwdriver or pliers depending on the type of assembly.

5. Remove the Existing Drain Pipe

After removing the drain assembly, carefully pull the old drain pipe out of the drain hole in the bathtub. If the pipe is stuck or difficult to remove, you may need to use a pipe cutter or saw to cut it in sections.

6. Install the New Drain Pipe

Before installing the new drain pipe, clean the drain hole in the bathtub thoroughly to remove any debris or old sealant. Apply a thin layer of plumber's putty around the base of the new drain pipe. This will create a watertight seal.

7. Connect the New Drain Pipe

Carefully insert the new drain pipe into the drain hole in the bathtub. Make sure it is fully inserted and sitting flush with the surface. Apply a thin strip of Teflon tape to the threads of the drain pipe.

8. Reconnect the Drain Assembly

Reattach the drain assembly to the new drain pipe, tightening the connection securely.

9. Test for Leaks

Turn the water supply back on and carefully check for any leaks around the drain pipe and assembly. If there are any leaks, tighten the connections further or replace the drain pipe or assembly if necessary.

10. Clean Up

Once you are satisfied with the installation, clean up any debris or tools from the work area.

Tips for Success

Here are some additional tips to keep in mind when changing a bathtub drain pipe:

Wear safety glasses and gloves to protect your eyes and hands.
Take photos of the existing drain pipe and assembly before dismantling them to ensure you reassemble it correctly.
Use a pipe wrench to tighten the connections between the drain pipe and the assembly. However, avoid overtightening, as this can damage the parts.
If the drain pipe is made of PVC, use PVC cement to create a strong and lasting bond.
If you are unsure about any part of the process, consult a professional plumber.

By following these steps and tips, you can successfully change a bathtub drain pipe and have your bathtub functioning properly again. However, always prioritize safety and remember that if you are not comfortable with the task, it is best to seek professional help.