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Old 03-02-2017, 01:35 PM   #1
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Venting second bathroom


I am installing a second bathroom in my basement, and want to know if the venting is ok?
I have a 2x4x4 inch wye for the sink, then a 3x4x4 inch wye for the toilet, then a 2x4x4 inch wye for the shower and a 2x4x4 inch wye for the laundry tub. Is it ok to use the sink drain and the laundry tub as a 2inch wet vent.
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Old 03-02-2017, 07:17 PM   #2
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Re: Venting second bathroom


Please draw what your doing your using wye's and that gives me the impression you have something else tied into this like a second floor stack?
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Old 03-02-2017, 08:26 PM   #3
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Here is s a drawing not sure if you can see it to good.
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Venting second bathroom-image_1488507951332.jpg   Venting second bathroom-image_1488507968986.jpg  
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Old 03-02-2017, 08:37 PM   #4
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Re: Venting second bathroom


tarnation you're going to have to do better than that
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Old 03-02-2017, 08:48 PM   #5
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Re: Venting second bathroom


What your planning to do is 100 percent illegal to IPC. Your toilet lav and shower need to be completely separate from the rest of the house drainage. Going downstream you have toilet on 90, wye with branch to vented lav, then a wye with 2 inch branch to shower drain. Then you tie into the main drain. If the distance on your lav (bathroom sink) vent out the roof is greater then 40 foot then you will need 2 inch to that sink with a 2 inch vent.

You also cannot tie any of this within 10 pipe diameters or 40 inches if 4 inch to the base of a stack.

Also the shower trap must be within 8 foot of the wye it comes from.

The laundry sink ties into your main sewer as you drew it. That is legal.


Last edited by Ghostmaker; 03-02-2017 at 09:11 PM.
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Old 03-02-2017, 09:07 PM   #6
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Is there a better way as the only way to plumb the washroom is directly above the main sewer line
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Old 03-02-2017, 09:09 PM   #7
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Re: Venting second bathroom


http://imgur.com/80qmHuQ

Take a look at this

Last edited by Ghostmaker; 03-02-2017 at 09:11 PM.
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Old 03-02-2017, 09:10 PM   #8
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Re: Venting second bathroom


[/IMG]
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Old 03-02-2017, 09:26 PM   #9
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Think I have it is this better followed your drawing
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Old 03-02-2017, 09:36 PM   #10
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Do you think my last drawing is fine to continue? Thanks
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Old 03-02-2017, 10:03 PM   #11
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Re: Venting second bathroom


Ghostmaker right, your proposed plan is wacky=
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Old 03-03-2017, 05:21 AM   #12
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Re: Venting second bathroom


Is my newest drawing not to code at all?
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Old 03-03-2017, 07:55 PM   #13
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Re: Venting second bathroom


You will need a vent on your shower then you are ok. To IPC that is, if your in a UPC state I have no idea?
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Old 03-06-2017, 11:26 AM   #14
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Thank you
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