Bathroom rebuild - mini stack with vent?

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Michal Krombholz

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Hi,

I am new DIY in process of rebuilding a bathroom.

The question is about using a mini vertical drain stack with stack vent (essentially a 2x 3"x2": san tees on top of each other with a 2" vent on top - as pictured). The shower and sink will be connect to this mini stack branches. Is this vent and its location OK? There is existing WC downstream from it.

The old bath had a WC and LAV connected to main 3" drain, separately, no vents, only a relief vent downstream and further up the horizontal/vertical stack vent (for the rest of the house). I doubt it was in any code or sanity.

Please, do not make too much fun of my drawing and concept ;-)

Regards,
Michal
 

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