Wally Blanton Plumbing & Sewer

A Step-by-Step Guide to Installing a Bathroom Sink Drain

Articles |

A Step-by-Step Guide to Installing a Bathroom Sink Drain

Facing issues with your bathroom sink drain? Learn how to install a new one like a pro with our comprehensive, step-by-step guide. This informative article will help homeowners tackle plumbing problems with ease!

As a homeowner, dealing with plumbing issues can be a frustrating experience. However, some problems can be solved without the need for professional assistance. Installing a bathroom sink drain is one such task that you can tackle on your own. In this comprehensive guide, we will provide you with a step-by-step approach to successfully install a new drain for your bathroom sink. So let’s get started on resolving your drainage woes!

Assessing the Situation

Before installing a new bathroom sink drain, it’s crucial to assess the current situation. Start by checking if you have all the necessary tools and materials for the installation. Some common tools you will need include a wrench, pliers, putty knife, and a bucket to catch any water that may spill during the process.

Removing the Old Drain

Step 1: Turn off the water supply
Before beginning any plumbing project, it’s essential to turn off the water supply. Locate the shut-off valve under the sink and turn it clockwise until fully closed.

Step 2: Disassemble the existing drain
Place the bucket under the sink and remove any water remaining in the trap. Use pliers to loosen the slip nuts connecting the drain pipe to the sink strainer. Gently disassemble the existing drain by unscrewing the nut connecting it to the sink.

Step 3: Clean the sink area
After removing the old drain, use a putty knife to scrape off any residue or old plumber’s putty from the sink area. Ensure the surface is clean and smooth before proceeding to the next step.

Installing the New Drain

Step 1: Apply plumber’s putty
Take a small amount of plumber’s putty and knead it in your hands until it becomes soft and pliable. Apply the putty around the underside of the new drain flange, creating a seal between the sink and the drain.

Step 2: Insert the new drain
Place the new drain into the sink opening, ensuring that it fits properly. Press it down gently until the putty creates a secure seal between the sink and the drain.

Step 3: Attach the drain nut
On the underside of the sink, thread the drain nut onto the drain tailpiece. Use pliers to tighten the nut, ensuring a snug fit. Be careful not to overtighten, as it could cause damage to the sink or drain.

Step 4: Connect the drain pipe
Attach the drain pipe to the drain tailpiece using slip nuts. Tighten the nuts by hand and then use pliers to secure them further. Ensure all connections are tight to prevent any leaks.

Test and Finishing Touches

Step 1: Turn on the water supply
Open the shut-off valve by turning it counterclockwise to restore the water supply. Check for any leaks around the drain area and make necessary adjustments if needed.

Step 2: Test the drain
Fill the sink with water and let it drain completely. Check for any signs of leakage or abnormal draining. If everything looks good, congratulations! You have successfully installed a new bathroom sink drain.


Dealing with plumbing issues can be overwhelming, but learning how to install a bathroom sink drain can save you time and money. By following this comprehensive guide, you’ll be able to tackle this project with confidence. Remember, if you ever feel unsure or uncomfortable, it’s best to consult a professional plumber. With a properly installed drain, you can say goodbye to pesky drainage problems and enjoy a smoothly functioning bathroom sink.

Learn More About Home Plumbing Solutions at https://wbplumbingsewer.com/schedule/

Have an emergency? Call us now at (262) 228-9821.

Have an Emergency?

Call Now: (262) 228-9821

Table of Contents

Related Posts