Replace Drain Trap Bathroom Sink

A drain trap is a plumbing fixture that prevents sewer gases from entering a building. It is a curved pipe that holds water, which creates a seal that blocks the gases. Drain traps are typically located under sinks and other fixtures that drain wastewater. Over time, drain traps can become clogged with hair, soap scum, and other debris, which can prevent them from functioning properly. If a drain trap is clogged, it can cause sewer gases to enter the building, which can be a health hazard. In addition, a clogged drain trap can also lead to slow drainage and other plumbing problems.

Replacing a drain trap is a relatively simple plumbing task that can be completed in a few hours. However, it is important to note that working with plumbing fixtures can be dangerous, so it is important to take precautions and follow all safety instructions. If you are not comfortable working with plumbing, it is best to hire a professional plumber to replace the drain trap for you.

Tools and Materials You Will Need

New drain trap
Adjustable wrench
Bucket
Plumber's putty
Teflon tape

Step-by-Step Instructions

Turn off the water supply to the sink.
Place a bucket under the drain trap to catch any water that may leak out.
Loosen the nuts that hold the drain trap in place using an adjustable wrench. Do not overtighten the nuts, as this can damage the drain trap.
Remove the old drain trap. Be careful not to spill any water that may be trapped inside the trap.
Apply a bead of plumber's putty around the base of the new drain trap.
Wrap the threads of the new drain trap with Teflon tape.
Screw the new drain trap into place. Be sure to tighten the nuts securely, but do not overtighten.
Turn on the water supply to the sink and check for leaks.

Tips

When choosing a new drain trap, be sure to select one that is the correct size for your sink. The drain trap should be at least 1-1/2 inches in diameter for a bathroom sink and 2 inches in diameter for a kitchen sink.
If you are having difficulty removing the old drain trap, you can try using a penetrating oil to loosen the nuts.
Do not use excessive force when tightening the nuts on the new drain trap. Overtightening can damage the trap or the sink.
If you are not comfortable working with plumbing fixtures, it is best to hire a professional plumber to replace the drain trap for you.