Replacing a Counter-Top Bathroom Sink

Over time a sink can become dingy, the material can crack or chip, or you may even develop leaks in the seal. Whatever the reason, when the time comes to replace a bathroom sink remember to take your time, buy quality products, and above all always be prepared. When removing a counter top sink the idea is the same but there are a few difference compared to a wall mounted sink.

When you decide to replace your counter top sink make sure the replacement sink is the same size or even slightly larger than the original. This provides a secure fit for the new sink. Be sure the measurements of the old sink are equivalent to the old sink. Measure the length, width, and depth of the old sink. Also measure the width of the counter top. Measure the distance of the sink from the front to the edge of the counter top, and from the back of the sink to the back splash or wall. Take the sink measurements to the store with you. Also take a list of hardware/supplies you will need for the job. This list should consist of a faucet, trap, supply lines, and tailpiece (etc.).

First, you need to disconnect the plumbing. Do this by turning off the water supply. If there is not a shut off valve located under the sink, turn it off at the main valve. Test to be sure it is turned off before beginning. Now, place a bucket under the trap and begin loosening the slip nuts on the trap and remove it. Drain the water from the trap into the bucket. Remove the tailpiece connected to the drain if your sink has one. You now want to disconnect the supply lines from the faucet this will conclude the disconnection process.

Loosen any clips underneath the counter. Use a utility knife to cut the sealant along the rim and pry it apart. Lift the sink straight out of the counter top (you may need assistance). Begin installation by attaching the faucet to the new sink. Flip the sink upside down on a towel and run a 1/4″ bead of silicone caulk under the sink rim. Lower our sink into place and press firmly to ensure that it will adhere to the counter, and wipe off any excess caulk. Install any required clips.

Tighten the drain assembly a final time. Now you will connect the supply lines to the tailpieces. Using the manufacture’s instructions connect the stopper assembly. Install the tailpiece now if one is required between the trap and rain. Install the trap and check all connection points for assurance.

Now you will turn the water back on and check for any leaks or signs of water. Ensure that slip nuts are tightened and then turn on the faucet to check for drain leaks as well. If leaks are evident, turn off the water supply, re-check connections and tighten them slowly until leak is stopped. If drain leaks re-tighten the slip nuts carefully. After your leak check you will have your newly installed sink.