Why is the drain pipe in a sink always U-shaped?

Answer 1

This is a trap used as a water seal so sewer gasses don't come up through the drains. Every sink has a P trap. The toilet has one built in to it.

Answer 2

i'm a wide plunger fan, you could look at a number of my different solutions and discern that out. in case you take advantage of the plunger and it unclogs the drain for below a lengthy time period than that continually factors to oil boost. once you in effortless words drain warm water down the pipes, it really is in effortless words passing by and not at all melting the grease. I absolutely have performed this different circumstances. Fill the sink with warm water, commence draining it a touch earlier you commence plunging so lots of the water is interior the pipes, you would ought to plug the vent on the roof which permits the water to easily proceed draining. once you plunge, make a mess and plunge very confusing, this frequently helps and also you'll see truly some junk come decrease back up the drain if you're doing it proper. If that fails to sparkling up the problem I absolutely have had extra appropriate success with slightly of one million/2" pex tubing you will get from Menard's. it really is versatile sufficient to get round a nook and inflexible sufficient to blast by a clog. you would ought to disassemble the p-capture below the sink to get into the drain with the pipe notwithstanding, it really is really ordinary as they frequently use compression rings and nuts for the p-capture. wish this helps, and strong success.

Answer 3

That "U" shape is called a "trap". It traps enough water in the pipe to seal the pipe and prevent it from allowing sewer gases to enter the house. Along with having a very unpleasant aroma sewer gases can be flammable, explosive or toxic.

My Dad was a plumber and taught me much of the trade.

Answer 4

It is called the trap, it holds water in the bottom, it catches things going down the sink (rings, etc..)as well as keeping smells from coming back up the drain.

Answer 5

The bottom of the "U" holds water at all times. It acts as a barrier to keep sewer gases from coming back up the line and getting into your living space (and nose). It's actually called a "P-trap", I guess because it looks like the letter P turned sideways, although I think "U" is also a good explanation.

Answer 6

The U shape holds water in it. This stops vermin and smells from getting up the drain and into your house.

Answer 7

It is "U" shaped to prevent sewer gas from entering your home

Answer 8

beacuse it helps drain better.

Answer 9

IN CASE YOU DROP A VALUABLE RING OR DIAMOND IN THE DRAIN YOU CAN RETRIEVE IT !