Planning to correct venting issues

[bosrox]

I moved into a fixer-upper and I'm trying to correct some venting issues with my plumbing (previous owner replaced waste lines, but didn't put in any vents! amazing that my plumbing even works!!)

I've been looking at the plumbing code and put together a plan. Does this make sense? any red flags here?

 

[frodo]

.....................disregard, op is ipc, not upc

 

[bosrox]

Oh right — New Hampshire. My diagram was based on the assumption that I could wet vent the wc/tub through the lav? based on your drawing did I interpret that wrong?

Thanks for taking your time to look at my post.

 

[gladiatormaniac7]

You can wet vent a bathroom group with the lav. I don't understand the kitchen. It looks like the vent is tied to the inlet side of the p-trap. If the vent was tied downstream of the kitchen p-trap then its fine

 

[stevemachine]

Yeah kitchen has to vented on trap arm, otherwise looks good

 

[frodo]

if you have the room i would use a sideoutlet tee at the lav

 

[bosrox]

Thanks all, you're right about the kitchen vent... I just bungled the diagram there.

I might not have enough space for that tee, but it would be nice if I do.

 

[phishfood]

if you have the room i would use a sideoutlet tee at the lav

I used to see side outlet tees used just like that in apartments all of the time. Never see it anymore, but I really do like to vent a bathroom that way.