Replace P Trap Bathroom Sink

A P-trap is a plumbing fixture that connects the sink drain to the drainpipe. It is a U-shaped pipe that traps water to prevent sewer gases from escaping into the bathroom. Over time, P-traps can become clogged with hair, soap scum, and other debris, which can lead to slow drainage or even complete backups. If you are experiencing problems with your bathroom sink drain, replacing the P-trap is a relatively simple and inexpensive repair that you can do yourself.

Tools and Materials You Will Need

New P-trap
Adjustable wrench
Plumber's putty
Bucket
Rags

Step-by-Step Instructions

Turn off the water supply to the sink. There should be two shut-off valves under the sink, one for the hot water and one for the cold water. Turn both valves clockwise to turn off the water.
Place a bucket under the P-trap to catch any water that may leak out.
Loosen the nuts that hold the P-trap in place. There will be two nuts, one on each end of the P-trap. Use an adjustable wrench to loosen the nuts, but do not remove them completely.
Remove the old P-trap. Once the nuts are loose, you can remove the old P-trap by pulling it straight down. Be careful not to spill any water that may be trapped in the P-trap.
Apply plumber's putty to the new P-trap. Plumber's putty is a sticky substance that helps to seal the P-trap and prevent leaks. Roll a small amount of plumber's putty into a rope and apply it to the threads of the P-trap.
Install the new P-trap. Insert the new P-trap into the drainpipe and hand-tighten the nuts. Use the adjustable wrench to tighten the nuts further, but do not overtighten them.
Turn on the water supply to the sink and check for leaks. Once the P-trap is installed, turn on the water supply and check for any leaks. If you see any leaks, tighten the nuts further until the leak stops.

Tips

If you are having trouble removing the old P-trap, you can use a pair of pliers to grip the nuts and break them loose.
If you do not have any plumber's putty, you can use silicone caulk to seal the P-trap.
If you are still having problems with your bathroom sink drain after replacing the P-trap, you may need to call a plumber.

Conclusion

Replacing a P-trap is a relatively simple and inexpensive repair that you can do yourself. By following these step-by-step instructions, you can easily replace the P-trap in your bathroom sink and get your drain flowing smoothly again.