How To Change The Drain In A Bathroom Sink

How to Change the Drain in a Bathroom Sink

A leaky or slow-draining sink is a common plumbing issue that can be easily fixed by replacing the drain. While it may seem like a daunting task, changing a sink drain is a relatively simple and straightforward process that can be completed in a few simple steps. Here's a comprehensive guide to help you tackle this plumbing project with ease.

Materials Required:

New drain assembly
Adjustable wrench
Plumber's putty (optional)
Bucket or bowl
Rags or towels

Step-by-Step Instructions:

1. Turn off the Water Supply:

Before you begin, turn off the water supply to the sink. Locate the shut-off valves under the sink and turn them clockwise until the water flow stops. Open the faucet to release any residual water in the pipes.

2. Remove the Old Drain Assembly:

Place a bucket or bowl under the sink to catch any water. Use an adjustable wrench to loosen the nuts holding the drain assembly in place. Once the nuts are loose, carefully remove the old drain assembly from the sink.

3. Clean the Drain Hole:

Once the old drain is removed, inspect the drain hole in the sink. Remove any debris or old putty that may be stuck to the surface. If necessary, use a damp cloth or sponge to clean the area thoroughly.

4. Apply Plumber's Putty (Optional):

Although not always necessary, applying a thin layer of plumber's putty around the base of the new drain assembly can help create a watertight seal. Roll out a small piece of putty into a thin rope and place it around the bottom of the drain flange.

5. Install the New Drain Assembly:

Insert the new drain assembly into the drain hole. Tighten the nuts by hand as much as possible. Use the adjustable wrench to further tighten the nuts, but avoid overtightening.

6. Reconnect the Drain Pipe:

Reconnect the drain pipe to the drain assembly. Most drain assemblies come with a rubber gasket that fits between the pipe and the drain. Make sure the gasket is properly seated and tighten the connection.

7. Turn on the Water Supply:

Turn on the water supply to the sink and check for leaks. If there are any leaks, tighten the nuts further until the leak stops. Run water through the sink for a few minutes to ensure the drain is functioning properly.

Tips:

If the drain is severely clogged or damaged, it may be necessary to remove the entire sink to access the drain assembly.
Use a flashlight to inspect the drain hole and ensure that all debris has been removed.
If you encounter any difficulties, do not hesitate to contact a licensed plumber for assistance.
Regularly cleaning and maintaining your sink drain can help prevent clogs and extend its lifespan.