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In N. America, bathroom sink drain and p-trap are usually 1.5 inch inside diameter.
Some places allow for 11/4 - 11/2 basin trap.Normally you will find a 11/4 INLET and 11/2 outlet
Tub waste is 11/2" toilets 3" - 4"
Showers 2"
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Why does a bathroom sink drain get stopped up?
Most times a bath / lavatory sink will stop water flow because of hair that accumulates in the trap of the drain ,The trap is the upside"S"underneath the sink ...Try using liquid plumber foaming pipe snake that you can buy at your favorite grocery store.
What is the size of most bathroom sink drains?
The drain in the bathroom sink is 1 1/4 inch. However, the trap or the fitting on the wall may be 1 1/2 or 1 1/4 inch.
What is an s trap?
An S trap is a length of water plumbing pipe used under sinks. The pipe is shaped like an S and prevents the pipe from becoming air locked. An air locked pipe cannot drain.
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.
How do you disconnect a PVC drain trap under a bathroom sink that does not appear to have screwable fittings?
you must cut the pipe, and use a coupling meant for that size of pipe(its usually 1'1/2") to repair it, you will need the "rain or shine" cement(glue) to attach the coupling to the to ends of pipe. You could also use the purple primer and a heavy duty cement but the rain or shine is all in one. All this is available at any home improvement store
Can you joint a PVC trap to a metal drain pipe?
Yes, if they are the proper size to mate, or match up. yes
Why would the bathroom sink drain make a buzzing noise?
A buzzing sound could be created from debris in the drain pipe. Try removing the P trap and clearing out any junk you find.
How do you remove a clog from a bathroom sink drain?
If it's a sink drain , best to remove the entire pipe and P trap. I then take outside and hose them out.
Washing machine stand pipe is above and p trap is below bathroom floor p trap hooks to house drain then hooks to house vent stack that is 6 inches or more above p trap is this safe and efficient?
No
Is the shower drain has a ubend or straight pipe?
Shower drain goes into a trap under shower. Continue piping from trap to drain line.
Is a 2 drain pipe and trap to big for a washing machine drain?
no, in fact most plumbing codes require a 2" drain/trap for washing maching drain.
A single drain cover on a bathroom floor opens to a?
trap with a cleanout plug
Why does drain pipe collect grease?
It doesn't. A grease trap collects grease, a pipe just conveys it there.
Can the basin drain pipe be offset from the pipe going into the wall?
As long as the pipe going into the wall is straight, the rest of the drain pipe can be routed however it needs to be. Very often the trap is at an angle to the pipe in the wall.
Why does a bathroom sink drain get stopped up?
Most times a bath / lavatory sink will stop water flow because of hair that accumulates in the trap of the drain ,The trap is the upside"S"underneath the sink ...Try using liquid plumber foaming pipe snake that you can buy at your favorite grocery store.
What is the size of most bathroom sink drains?
The drain in the bathroom sink is 1 1/4 inch. However, the trap or the fitting on the wall may be 1 1/2 or 1 1/4 inch.
Does a toilet waste pipe require a trap?
The trap is built into the toilet itself, you shouldn't put one in the drain.
