Diagram of pipe... Will this work?

Jpb116

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• Feb 14, 2008

• #1

Will this work or will the tub not drain properly? The main waste pipe is 3" and vent will be a 2 1/2". The vent would be ~6 feet from the tub drain. I'm concerned about the position of the vent...


I saw one plumbed like this, everytime the tub was drained, it backed up into the shower.
Terry

 

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Jpb116

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• Feb 14, 2008

• #2

or is this a better solution?

is this a better option?

 

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Terry

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• Feb 14, 2008

• #3

Each p-trap should have it's own vent.
Wye off for the shower, vent using a combo, and tie back the vent at least 6" above the flood level of the fixtures.

 

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whats up

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no every time your bathtub drains it will suck the trap dry in the shower witch will make for a verry unpleasent smell.every fixture should be vented properly.

 

Jpb116

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Hmmmm. So would this be a problem?

On the other side of the room is the toilet and sink .. Would the configuration below work or is it a problem? By the way, Thanks Terry, this site is wonderful!

 

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Terry

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• Feb 14, 2008

• #6

It works if you use a wye and 45 fitting (combo ) where the lav drops into the main line.

 

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hj

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• Feb 14, 2008

• #7

toilet

Depending on the distance from the toilet to the vent, the looped vent might not be necessary.

 

Jpb116

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• Feb 15, 2008

• #8

distance

it's only about 3 feet ...

 

Jpb116

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• Feb 15, 2008

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Correction to original pic

So, The orginal question needs to be modified a bit. In the pic below please note that the vent that i want to tie into already exsists and serves a kitchen on the other side of the wall. So it seems that the stack up through the room would be considerd a wet vent, right? Does that change the rules at all?

 

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Jadnashua

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• Feb 15, 2008

• #10

Are the two rooms on the same floor; if so, it's not a wet vent? If not, then draining into the lower floor's vent makes it a wet vent and not the greatest solution. Depending on the size of the drain pipe, it may work okay.

 

Jpb116

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• Feb 15, 2008

• #11

answer

It is a ranch, so I guess it's not a wet vent... I just want to be certain I should still do the laypout that Terry suggested above... I wasn't clear in my original drawing...

 

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• Feb 15, 2008

• #12

Whatever way you configure it, don't forget a clean out. And at 3' the wc doesn't need a separate vent. It can be wet vented by the lavy.