Replace Drain Trap Bathroom Sink

A drain trap is a U-shaped pipe that prevents sewer gases from escaping into your bathroom. It also traps debris, which can prevent clogs. Over time, drain traps can become clogged with hair, soap scum, and other debris. This can lead to slow drainage or even a complete blockage.

If you're experiencing slow drainage in your bathroom sink, one of the first things you should check is the drain trap. If it's clogged, you can clean it out with a drain cleaner or a wire hanger. However, if the trap is damaged or corroded, you'll need to replace it.

Replacing a drain trap is a relatively simple plumbing project that you can do yourself with a few basic tools. Here's a step-by-step guide to help you get started:

Materials You'll Need:

New drain trap
Slip joint pliers
Adjustable wrench
Bucket
Rags

Steps:

Turn off the water supply to the sink.

This is usually done by turning the shut-off valves under the sink. 2.

Place a bucket under the drain trap to catch any water that may leak out.

Loosen the slip joint nuts on both ends of the drain trap using slip joint pliers.

Carefully remove the old drain trap from the sink.

Be careful not to spill any water that may be trapped inside. 5.

Clean the mating surfaces of the sink and drainpipe.

Remove any old sealant or debris. 6.

Apply a bead of plumber's putty to the mating surface of the sink.

Install the new drain trap.

Make sure that the washer is in place on the end of the trap that will fit into the sink. 8.

Tighten the slip joint nuts on both ends of the drain trap.

Do not overtighten the nuts, as this can damage the trap. 9.

Turn on the water supply to the sink and check for leaks.

If there are any leaks, tighten the slip joint nuts further.

Tips:

If you're not sure what size drain trap to get, take the old trap to a hardware store and ask for help.
If the drain trap is corroded, it's best to replace it with a new one.
If you're having trouble removing the old drain trap, you can use a penetrating oil to help loosen the nuts.
Be careful not to overtighten the slip joint nuts, as this can damage the trap.
If you're not comfortable replacing the drain trap yourself, you can call a plumber for help.