Can you hook up 2 sinks to 1 drain?

In most cases, you can easily adapt the supply and drain pipes to accommodate two sinks, using tee fittings, special valves, extension pipes and hoses. You may have to vent each sink separately, though, depending on your local plumbing codes.

How many sinks can share a drain?





Two sinks can share a trap as long as the centerline of the outlet (tailpiece) of both sinks is not more than 30-inches horizontally from the trap centerline, per International Plumbing Code (IRC P3201.

Can I use one P-trap for two sinks?

Related Articles. A double bathroom sink installation rarely requires more than one P-trap. The usual practice is to connect the two sinks to a tee and then feed the tee into a single P-trap, which then connects to the drain. The pipes you use to connect the sink to the P-trap are the same type the P-trap is made from.

How do I plumb for two sinks?

Quote from the video:
Quote from Youtube video: So we can do our new plumbing of a double sinks. Coming through the wall we have a copper pipe that actually has a threaded adapter at the end and that's inch and a half now.

Does a double sink need two water lines?

Good news, your double sink doesn’t need two P-straps. In fact, most plumbers will avoid this type of installation and use a T-configuration to lead both drains to one P-trap. There may be instances where your pipe coming in from the wall is too tall to work for one P-trap.

Can a sink and bathtub share the same drain?





1:Can multiple bathroom sinks, baths, showers ect share a common drain pipe ? Yes they can and do all the time.

How many sinks can drain into a 2 inch pipe?

710.1 Maximum Fixture Unit Load

DIAMETER OF PIPE (inches) MAXIMUM NUMBER OF DRAINAGE FIXTURE UNITS (dfu)
Total for horizontal branch Total for stack greater than three branch intervals
11/2 3 8
2 6 24
21/2 12 42

Can two drains share a vent?

Common vent



This very simple concept allows two traps to be vented by the same vent. The two traps and their fixture drains can be either at the same level or at different levels, provided that they are on the same floor. The following diagrams show some of the various approaches to common venting.

Can I add another sink in bathroom?

It’s entirely possible to replace a single sink with a double sink, although it requires a bit of work and money. Double bathroom vanities, sometimes called “his and her” sinks, can be more practical in situations where two people go through their morning routines simultaneously.

How do you plumb a double sink with PEX?



Quote from the video:
Quote from Youtube video: Here yep all right so this is an important pex fitting right here. This is what you're going to use. For your hot and cold water lines to secure. Your pecs line to your 2×4.

How do I run plumbing for a sink?

Kitchen Sink Installation in 8 Steps

  1. Measure and Mark the Kitchen Sink’s Layout. …
  2. Mark the Cut Lines onto the Counter. …
  3. Cut a Sink Opening with a Jigsaw. …
  4. Install Kitchen Faucet. …
  5. Attach Strainer Over Plumber’s Putty. …
  6. Set The Sink and Connect Water Supply. …
  7. Connect the Drain Pipes. …
  8. Attach Dishwasher Drain and Tidy up.


Do you need plumbers putty for sink drain?



If you need to stop or prevent leaks around your faucet, sink or tub drains − plumber’s putty is the product you need. Plumber’s putty is a sealing staple for professionals, homeowners and DIY-ers alike.

What size pipe is used for sink drain?

Typically, a 1 ½ inch PVC pipe is used for sink drains, as it can adequately handle the water flow out of a kitchen sink.