Venting a toilet in the Wall behind the toilet but the drain is across the room?

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Weekend DYI

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Can anyone tell me if I can add a vent only behind the Toilet and use a 3" ABS Sweeping 90 TEE to do so? The actual drain is 9 feet away across the room. See my attached Drawing.
 

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hj

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Your question is confusing. The pipe going up the wall behind the toilet is its vent. The other pipe will only be a legal vent if your inspector would approve it. Some would, but many would not.
 

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So you are saying to vent behind the toilet like this is ok, even though to do it, I have to tee at the toilet flange?
 

Cacher_Chick

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Your picture is not clear as to how exactly you plan to make the connection.

The vent cannot run horizontally behind the toilet so a tee would not work. A wye would work, depending on exactly how the connections are made.
 
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Hey, wait a minute.

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