How To Plumb A Bathroom Sink P Trap

How to Plumb a Bathroom Sink P-Trap

A P-trap is a plumbing fixture that is installed under a sink to prevent sewer gases from entering the home. It is a curved pipe that traps water, creating a seal that blocks the gases. P-traps are typically made of plastic or metal and are available in a variety of sizes and shapes.

Installing a P-trap is a relatively simple process that can be completed in a few steps. However, it is important to follow the instructions carefully to ensure that the trap is properly installed and functioning correctly.

Materials Needed

P-trap
Slip nuts
Washers
Plumber's putty
Wrench

Instructions

Turn off the water supply to the sink.
Disconnect the old P-trap from the sink drain and the drainpipe.
Clean the sink drain and the drainpipe.
Apply a bead of plumber's putty to the flange of the new P-trap.
Insert the P-trap into the sink drain and tighten the slip nuts.
Connect the other end of the P-trap to the drainpipe and tighten the slip nuts.
Turn on the water supply and check for leaks.

Tips

Use a wrench to tighten the slip nuts, but do not overtighten them.
If the P-trap is not properly installed, it can leak, which can lead to water damage.
If you are not comfortable installing a P-trap yourself, you can hire a plumber to do it for you.

Troubleshooting

If the P-trap is leaking, it may be due to a loose slip nut or a damaged washer.
If the P-trap is clogged, it may be due to a buildup of hair or soap scum.
If the P-trap is making a gurgling sound, it may be due to a blocked vent.

By following these instructions, you can easily install a P-trap under your bathroom sink. This will help to prevent sewer gases from entering your home and will keep your plumbing system functioning properly.