How To Replace Plumbing Under Bathroom Sink

Replacing the plumbing under a bathroom sink is a necessary task for any homeowner. It can be a daunting task, but it’s not as difficult as you might think. By following these step-by-step instructions, you can easily replace the plumbing under your bathroom sink and get your sink working properly again.

Step 1: Gather your materials

Before you start, you’ll need to gather all of the materials you’ll need. This includes:

A new drain assembly
A new water supply line
A new faucet
A basin wrench
A pair of pliers
A screwdriver

Step 2: Turn off the water supply

Once you have all of your materials, you’ll need to turn off the water supply to your bathroom sink. To do this, locate the shut-off valves under the sink and turn them clockwise until the water is completely shut off.

Step 3: Disconnect the old drain assembly

Once the water is turned off, you can disconnect the old drain assembly. To do this, use the basin wrench to loosen the nuts that hold the drain assembly in place. Once the nuts are loose, you can pull the drain assembly out of the sink.

Step 4: Install the new drain assembly

Next, you’ll need to install the new drain assembly. To do this, place the new drain assembly in the sink and tighten the nuts until they are snug. Be careful not to overtighten the nuts, as this can damage the drain assembly.

Step 5: Connect the new water supply line

Once the new drain assembly is installed, you’ll need to connect the new water supply line. To do this, attach one end of the water supply line to the faucet and the other end to the shut-off valve under the sink. Tighten the nuts on both ends of the water supply line until they are snug.

Step 6: Install the new faucet

Finally, you can install the new faucet. To do this, place the new faucet in the sink and tighten the nuts until they are snug. Again, be careful not to overtighten the nuts, as this can damage the faucet.

Step 7: Turn on the water supply and check for leaks

Once the new faucet is installed, you can turn on the water supply. Once the water is on, check for leaks around the drain assembly, the water supply line, and the faucet. If you find any leaks, tighten the nuts until the leaks stop.