How To Replace Drain Pipe Under Bathtub

How to Replace Drain Pipe Under Bathtub

Replacing the drain pipe under a bathtub can be a challenging but necessary task for any homeowner. A faulty drain pipe can lead to leaks, water damage, and unpleasant odors. This guide will provide you with step-by-step instructions on how to replace the drain pipe under your bathtub.

Materials You'll Need

New drain pipe
Adjustable wrench
Plumber's putty
Teflon tape
Bucket or bowl
Caulk gun and caulk

Step 1: Prepare the Bathtub

Before you begin, turn off the water supply to the bathtub and open the faucet to drain any remaining water. Use an adjustable wrench to disconnect the P-trap from the drain pipe and then remove the old drain pipe from the bathtub.

Step 2: Inspect the Drain Hole

Once the old drain pipe is removed, inspect the drain hole in the bathtub. Remove any old plumber's putty or debris from the drain hole and apply a fresh bead of plumber's putty around the drain hole.

Step 3: Install the New Drain Pipe

Apply Teflon tape to the threads of the new drain pipe and insert it into the drain hole. Tighten the drain pipe by hand as much as possible and then use the adjustable wrench to further tighten it. Ensure that the drain pipe is properly seated and secure.

Step 4: Connect the P-trap

Place the P-trap over the drain pipe and secure it using the nuts and washers provided. Tighten the nuts by hand and then use the adjustable wrench to further tighten them. Turn on the water supply and check for any leaks around the P-trap connections.

Step 5: Seal the Bathtub

Apply a bead of caulk around the perimeter of the bathtub where it meets the drain hole. Smooth the caulk with your finger or a caulk smoothing tool. Allow the caulk to dry completely before using the bathtub.

Tips

Always use a new drain pipe when replacing the old one.
Make sure to tighten all nuts and washers securely, but avoid overtightening.
If you are not comfortable performing this task, it is advisable to hire a licensed plumber.

Replacing the drain pipe under a bathtub is a relatively simple task that can be completed in a few hours. By following these instructions carefully, you can ensure that the replacement is done properly and that your bathtub is leak-free and functioning efficiently.