Wet Vent for toilet and sink in pole barn

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Makoester1

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Hello,
I have a 1.5" sink drain and 3" toilet drain that were roughed in prior to slab pour. My slab is now in and getting ready to finish plumbing. It has came to my attention that a 2" may be required to wet vent the toilet and sink. However as previously stated, I am limited to a 1.5" at this point. Do I have any other options?

Thanks.
 

Terry

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Hello,
I am limited to a 1.5" at this point. Do I have any other options?

Thanks.

It's been poured in concrete? Doesn't sound like much you can do about it now.
1.5" will work most likely, but not the best thing. Make sure you have a cleanout for the lav so you can snake and clear the line clear if needed.
 

Makoester1

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It's been poured in concrete? Doesn't sound like much you can do about it now.
1.5" will work most likely, but not the best thing. Make sure you have a cleanout for the lav so you can snake and clear the line clear if needed.
Thanks Terry. Yes it is poured in concrete. Will adding an AAV after the sink p trap prior to the vent to roof provide any additional benefits?
 
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