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the traps designed use was to hold a " plug " of water, to help stop sewer odors from backing up the pipes.

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Q: Why sink need a trap?
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Related questions

Can you use the existing shower drain for a pedestal sink and do you need a trap for the sink since there is already a trap in the floor?

No and yes. Amendment (not from a professional plumber!): If you were simply running the sink drain into the shower drain and if there was not a reduction in pipe size, I would think you would be able to do that. I think the reason you need a trap for the sink has to do with code that requires a trap be no more than 24" from the basin to the trap arm. That being said, the pedestal sink in my house does not have a trap until after it drains below the floor.


Minimum distance below sink to trap?

What is the minimum distance between the bottom of a sink and the trap attachment for a bathroom sink


How do you install pipe without p-trap?

You need aP-trap under every sink. Get a plumber if you don't know what you are doing.


Do you need a air vent for the dishwasher in California?

It is usually hooked up to your kitchen sink p-trap or garburator under the sink, which is vented. This is the only vent you need for drainage.


When adding a new sink can you use a vent pipe that another sink is already using?

You need to check with your local and state building codes, but I have done this many times before. Just make sure that it is utalizing a trap. If you go into the other drain below the other trap make sure you plumb in a new trap for the new sink


What is the technical name for a sink pee trap?

water trap, vapor trap, P trap,,,,,,,,,,,,,,, Plummers use all those, and everyone will know what you want. You need to know if its 1 1/4 or 1 1/2 inch.


When was the sink trap invented?

1743 in England for the Duke of York and if you need the exact month check out the history of plumbing


What is a trap spoon?

A trap spoon is what happens when you leave a spoon underneath the facet in a sink. When you turn on the sink water splashes up everywhere and is generally a huge wad of hard to deal with. A trap laid with a spoon.


Do you need an air vent installed for the dishwasher and garbage disposal and if so can it be installed another way if needed?

Your kitchen sink should already be vented if there is a p-trap draining to the wall. if it is an s-trap it is not vented and not to present code requirements. The dishwasher drain goes into the side of the disposal and the disposal should drain to the trap. A separate vent is not required for the disposal or dishwasher as the trap for the sink is what requires a vent.


Where is a p trap located?

Directly under each sink.


Where is a p-trap located?

Directly under each sink.


Does the kitchen sink need a P-trap with a disposal installed?

Yes. It prevents sewer gases from entering by way of the water trapped at the elbow. Gases need an upflow which is eliminated by the P-Trap. It's not a pee trap, it's a p-trap. Yes you do need a p-trap. The p-trap holds some water in the trap to hold back the sewage gas from coming up through the sink. IN ADDITION: A P-trap can be used to unblock or unclog small blockages either in the drain pipe exiting the trap or the trap itself, because it holds water, by covering the plug, it works the same way as a plunger does and by squeezing it continuously it forms a suction drawing or pushing blockages, freeing them and pushing them further down the line until it is clear. It is useful to know when a plunger is not at hand.