1-1/2" vent for 2 seperate Lav.

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vrhurtado

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Wondering if I could use a 1-1/2" vent pipe for 2 vanities. A single vanity in the first floor and a two vanity in the second floor? Please see image attached.
thanks, Victor from California.
 

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Terry

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Not the way you have it drawn.
The double lav upstairs comes in below the first floor.
The vent for the downstairs can revent at 42" above the second floor.

dwv_b2.jpg
 

vrhurtado

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Thank you Terry for the quick reply. Drawing makes sense.
I do wonder, when can one use a wet pipe for a vent...under which conditions?
thanks, Victor
 

vrhurtado

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Thanks once again Terry. Could you please provide me with any feedback on the updated plumbing image attached.
I am trying to show two bathrooms on the 1st floor and 1 bathroom upstairs. All my drain pipes are in the crawl space. I do have one wet vent for the toilets down stairs only, everything else is dry vents.
Thanks, Victor
 

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vrhurtado

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Hello, can someone please provide me with feedback on my design, attached above. I made a notation error which shows that I have some 1- 1/2" drains which I don't every is 2", other than that I would appreciate any feedback.
thanks, Victor
 

Reach4

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I am not a plumber. I am not sure what your drawing depicts in places, but let me point out that a toilet does not get a trap plumbed in. Instead the trap is internal to the toilet. So if your drawing is intending to show traps for the toilet, then you want to get rid of those.
 

vrhurtado

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Thank you for the guide document, it has opened my eyes. Unfortunately, I am still a bit confused about the required changes. If possible if anybody could please provide me with some specific details where the image above needs to change, I would greatly appreciate it. thanks, Victor
 

vrhurtado

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Hello everyone and good morning Terry,
Wondering if anybody has more inputs on my layout version 2? I have 3 vents, 2", 2" and 1-1/2". my drains are 3" for the toilets and 2" for everything else. I have a wet vent that is less than 6' away.
Any comments / suggestions, I would greatly appreciate it.
thanks, victor
 

Terry

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upc_wet_venting_bathrooms.jpg


Here is something for UPC on wet venting.
This is all single floor, bathroom fixtues.
Vents for the first floor can combine as vents on the first floor, and then those can combine with the 2nd floor at 42".

Version 2 of yours shows that you are learning.
A tub and a shower are plumbed with 2" waste, 1.5" vents.
The shower gets a 2" trap, the tub can use a 1.5"
 
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