How To Replace A Bathroom Sink Drain Pipe

A leaking or clogged bathroom sink drain is a common plumbing problem that can be easily fixed with a few simple tools and materials. Replacing the drain pipe is a relatively simple task that can be completed in a few hours. Here are the steps on how to replace a bathroom sink drain pipe:

Gather Your Tools and Materials

Before you begin, you will need to gather the following tools and materials:

Adjustable wrench
Plumber's putty
New drain pipe
Bucket
Rags

Turn Off the Water Supply

The first step is to turn off the water supply to the sink. You can do this by closing the shut-off valves under the sink. If there are no shut-off valves, you will need to turn off the main water supply to the house.

Remove the Old Drain Pipe

Once the water supply is turned off, you can remove the old drain pipe. To do this, loosen the nuts that hold the pipe in place using an adjustable wrench. Once the nuts are loose, you can pull the pipe out of the drain hole.

Clean the Drain Hole

Once the old drain pipe is removed, you should clean the drain hole. You can do this by scrubbing it with a brush and some soapy water. Remove any debris or old putty from the hole.

Apply Plumber's Putty

Before you install the new drain pipe, you need to apply a bead of plumber's putty around the base of the pipe. This will help to seal the pipe and prevent leaks.

Install the New Drain Pipe

Insert the new drain pipe into the drain hole. Hand-tighten the nuts that hold the pipe in place. Once the nuts are hand-tight, you can use the adjustable wrench to tighten them further. Be careful not to overtighten the nuts, as this could damage the pipe.

Turn on the Water Supply

Once the new drain pipe is installed, you can turn on the water supply. Check for leaks around the pipe. If there are no leaks, you have successfully replaced the drain pipe.

Tips:

If you are not comfortable replacing the drain pipe yourself, you can call a plumber to do it for you.
It is a good idea to replace the drain pipe every few years to prevent leaks and clogs.
If you have a pop-up drain, you will need to remove the stopper before you can replace the drain pipe.