How To Replace Undercounter Bathroom Sink

How to Replace an Undercounter Bathroom Sink: A Step-by-Step Guide

Replacing an undercounter bathroom sink may seem like a daunting task, but it's actually a straightforward process that can be completed in a few hours with the right tools and materials. Here's a comprehensive guide to help you tackle this project with confidence:

Materials You'll Need:

* New undercounter sink * Plumber's putty * Silicone sealant * Adjustable wrench * Basin wrench * Bucket * Sponge or cloth

Step 1: Prepare the Work Area

* Turn off the water supply to the sink by closing the valves under it. * Disconnect the water supply lines from the sink using an adjustable wrench. * Open the drain valve to drain any remaining water from the sink.

Step 2: Remove the Old Sink

* Use a basin wrench to loosen the mounting nuts that hold the sink in place. * Tilt the sink slightly and lift it out from the countertop. * If the sink is sealed with caulk or silicone, carefully cut it away using a utility knife.

Step 3: Clean the Countertop

* Remove any residual caulk or sealant from the countertop. * Clean the countertop thoroughly with a sponge or cloth and soap. * Allow the countertop to dry completely.

Step 4: Apply Plumber's Putty

* Roll out a rope of plumber's putty and place it around the drain opening on the bottom of the sink. * Smooth the putty evenly to form a seal.

Step 5: Set the New Sink

* Carefully place the new sink on the countertop, aligning the drain opening with the plumber's putty. * Press down firmly on the sink to secure it.

Step 6: Install the Mounting Nuts

* Replace the mounting nuts and hand-tighten them until snug. * Use an adjustable wrench to tighten the nuts further, but do not overtighten.

Step 7: Reconnect Water Supply Lines

* Attach the water supply lines to the new sink by hand-tightening the nuts. * Secure the nuts further using an adjustable wrench.

Step 8: Seal the Sink

* Apply a bead of silicone sealant around the perimeter of the sink, where it meets the countertop. * Smooth the sealant using a damp sponge or finger. * Allow the sealant to cure according to the manufacturer's instructions.

Step 9: Turn on Water Supply

* Turn on the water supply valves under the sink. * Check for any leaks at the sink base, water supply lines, or drain. If you find any leaks, tighten the connections as needed.

Tips:

* Use a sink grid to prevent scratches and stains on the sink. * Clean the sink regularly with mild soap and water to maintain its appearance. * If you're not comfortable with plumbing, consider hiring a professional plumber.