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Old 11-19-2009, 01:49 PM   #1
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Bath Tub Rough-In for Basement

My vent connects to my 3" main before it goes up stairs. The vent pipe also goes up stairs and through the roof. Since they are connected and I already have a 3" roughed in for my toilet, can I install a new 2" that connects with the toilet pipe and not vent it anywhere else. This will all be under the slab. I hope this makes sense. PLEASE SEE PICS
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Old 11-19-2009, 03:23 PM   #2
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Bath Tub Rough-In for Basement

check you local codes. Some will permit no additional vent and allow the "wet vent" that you already have with the 3" line to the toilet.


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