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Carpenterwannabe
P-trap alternatives for a small bathroom

Hi All,

We managed to turn a hallway into a full bath, so in order to accommodate the small space, we purchased the tiniest pedestal sink on the market. Our handyman told us that because the sink is so tiny, there is no space for a p-trap. He installed an L-shaped pipe instead and soon enough, we started smelling the sewage vapors. Everytime we flush the toilet, we can hear it in the drain.

Is there another alternative for a p-trap that would fit in the narrow space between the pedestal and the wall? I've heard of a european P-trap, but where do I get it? Would that work?

Thanks in advance for your help.

Fencepost
Re: P-trap alternatives for a small bathroom

Do a Google search for bottle trap and you should find something that will work.

If space is really tight, the Kohler K-9033-CP will probably fit.

Re: P-trap alternatives for a small bathroom

Check your local plumbing code for the bottle trap.

I've had some of the smallest pedestal sinks installed all with p-traps, but keep in mind they always need to be re-roughed. Unlike a vanity below, there is little if no tolerance to be off much.

P.S. Plumbing can be a very dangerous hobby. Do you and your family a favor and hire a plumber for this. You already experienced deadly gases once, let's do this right.

johnjh2o
Re: P-trap alternatives for a small bathroom

That's what happens when you hire unqualified people. No plumber would have installed a fixture without a trap. It's like going to your auto mechanic for a broken arm. What should have been done was to rough-in the drain off center of the sink.
At this point you may be able to fit a 1-1/4" chrome P-trap in the space you have. It must be chrome as the plastic ones are the same size as the 1-1/2" traps. I would go after the handy man that created this problem and tell him your going to the building dept. Make him correct his mistakes free of charge to you.

John

MLBSF
Re: P-trap alternatives for a small bathroom

if code allows it in your area and it's accessible, you can install the trap below the floor or in the wall with an access panel. not the best way to do it but it will work.

dj1
Re: P-trap alternatives for a small bathroom
MLBSF wrote:

if code allows it in your area and it's accessible, you can install the trap below the floor or in the wall with an access panel. not the best way to do it but it will work.

Possible, but not cost/labor effective. A buried trap will also be hard to service.
I've never seen a pedestal sold in the USA that didn't allow a 1-1/4" metal trap, as John suggested. Difficult to install and to service even for the experienced plumber, but doable.

HoustonRemodeler
Re: P-trap alternatives for a small bathroom

Bottle traps are sold at my local Home Burrito

dj1
Re: P-trap alternatives for a small bathroom

Bottle traps may be wider than 1-1/4" and in that case, may be too big to fit.

Bay Area..Ca
Re: P-trap alternatives for a small bathroom

1-1/4" chrome chrome p-trap and make sure the sink is level so the 1-1/4" tail piece is not leaning in towards the wall.

MLBSF
Re: P-trap alternatives for a small bathroom

i believe botttle traps are not legal in all states even though you can buy them anywhere.

johnjh2o
Re: P-trap alternatives for a small bathroom

The problem with bottle traps it they don't completely flush all the standing water like a P-trap. This can cause frequent stoppages in the trap. They are a copy of the old drum traps which are not permitted in most states.

John

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