How To Fix Leaking Drain Pipe Under Bathroom Sink

How to Fix a Leaking Drain Pipe Under Bathroom Sink

A leaking drain pipe under a bathroom sink can be a frustrating and inconvenient issue. It can lead to water damage on the floor or cabinets, and it can be difficult to locate the source of the leak. However, with a little time and effort, you can fix a leaking drain pipe yourself.

Here are the steps on how to fix a leaking drain pipe under a bathroom sink:

1. Gather your tools and materials

You will need the following tools and materials to fix a leaking drain pipe:

Adjustable wrench
Plumber's putty
Teflon tape
Replacement drain pipe (if necessary)

2. Turn off the water supply

The first step is to turn off the water supply to the sink. There should be a shut-off valve located under the sink. Turn the valve clockwise to turn off the water.

3. Remove the old drain pipe

Once the water is turned off, you can remove the old drain pipe. Place a bucket under the drain to catch any water that may leak out. Use an adjustable wrench to loosen the nuts that hold the drain pipe in place. Once the nuts are loose, you can remove the old drain pipe.

4. Inspect the drain hole

Once the old drain pipe is removed, you should inspect the drain hole. Look for any cracks or damage that may be causing the leak. If you find any damage, you will need to repair it before installing a new drain pipe.

5. Apply plumber's putty

Before installing the new drain pipe, you need to apply plumber's putty to the flange. Plumber's putty is a type of sealant that helps to create a watertight seal. Apply a bead of plumber's putty around the base of the flange.

6. Install the new drain pipe

Now you can install the new drain pipe. Insert the new drain pipe into the drain hole and tighten the nuts until they are snug. Do not overtighten the nuts, as this can damage the drain pipe.

7. Wrap the drain pipe with Teflon tape

Once the new drain pipe is installed, you should wrap it with Teflon tape. Teflon tape is a type of sealant that helps to prevent leaks. Wrap the Teflon tape around the threads of the drain pipe, starting from the bottom and working your way up.

8. Turn on the water supply

Once the drain pipe is installed and sealed, you can turn on the water supply. Check for leaks around the drain pipe. If you find any leaks, tighten the nuts until the leaks stop.

Fixing a leaking drain pipe under a bathroom sink is a relatively simple task. By following these steps, you can save yourself the cost of calling a plumber.