Is this a good enough P-Trap

How do you tell if P trap is working?

Quote from the video:
Quote from Youtube video: If you take the letter p flip it around and lay it down that's what you see right here there's a letter p. And that's why it's called that so the p trap has been around for a long time.

Which is better S trap or P trap?

P-traps are generally considered by most to be more effective and consistent in maintaining water trap compared to S-traps. Their design makes them less vulnerable to drying out and losing seal: a properly installed P-trap will never lose its water seal.

Does P trap have to be below drain?

It is not ideal to have the p-trap below the the exit drain because water gravity has to force the water out instead of it flowing downwards naturally. They both work and have seen it many times. But essentially anything below already creates its own p-trap- so using another is redundant.

How far can P trap be from drain?

Maximum Distance



According to the International Residential Code, the maximum vertical distance between the sink drain and the entrance to the p-trap is 24 inches.

Should P-trap have water in it?

In a nutshell, a p-trap is a u-shaped bend in the waste pipe that connects a sink’s drain to a home septic tank or to a municipal sewer system. Under normal circumstances, p-traps always contain some water.

Why is my P-trap not draining?

Clean the P-trap. If the water is still not draining correctly, there might be a blockage in the P-trap, aka the elbow-shaped pipe under your sink. Food, grease and other debris may be stuck in the pipe, causing your sink to drain slowly or not at all because the water hits a snag on its way down.

Why are S traps not allowed?

The “S” trap is prohibited under the Uniform Plumbing Code throughout the United States. This is because the “S” trap will siphon or suck water out from the trap which will end up releasing methane (sewer) gases into the home. So, it is a code violation and if you are doing remodeling, you will have to replace it.

Does every drain need a trap?

Having said that, any plumbing fixture directly connected to the sanitary drainage system must be equipped with a water seal trap. That means every single plumbing fixture used to evacuate waste from a building should have its own plumbing trap.

Does toilet need P trap?

But never install a p-trap for a toilet!



Because toilet’s have internal traps. Double trapping a plumbing fixture in series is a code violation. The second trap causes unnecessary obstructions in the flow of drainage.

Does every P-trap need a vent?

P-traps need vents



1 – They give the sewer gases a place to vent, so they do not build pressure inside your sewer lines.

Can you have 2 P traps in series?

Yes, in most every home, multiple P traps eventually go into a single drain. The important considerations are that there is proper slope, there’s a vent within a certain distance of the drain (either wet or dry), and that the drains are properly sized.

Does a double sink need two P traps?

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.

Can two sinks share one P trap?

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 a bath and sink 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.

Can 2 sinks share the same 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.

What is double trapping in plumbing?

A double trap is two plumbing traps in tandem, one after the other in line, and this often causes the first trap to get sucked out by the last trap. An example of one sink trap connected to another sink’s trap is shown above.

How do you attach a P trap to a double sink?

Quote from the video:
Quote from Youtube video: Place the tailpiece washer onto the tailpiece and feed the nut up the pipe. Screw the tailpiece nut onto the strainer to attach the tailpiece. Hand tighten the nut.

How many fixtures can you have on one drain?

710.1 Maximum Fixture Unit Load

How many fixtures can a 2 inch vent handle?

There can be 24 fixture units on a 2-inch vent according to national building regulations. This allows for a safe, efficient plumbing setup that delivers consistent results.

How many toilets can be on a 3-inch drain?

There is one answer. The International Plumbing Code requires 5 Drainage Fixture Units in a bathroom group. It’s good for 20 DFU’s or 4 bathroom groups.