.Toilet vent stack...I need advice

[Jimongee]

Installing plumbing in my new construction home. How far can a toilet be from the vent stack? And can the toilet share the vanity drain venting ? I am using 3" toilet drain pipe and 2" vent runs. The main vent stack is 3". Thanks for your help here.
Jim in TN using UPC 2009....

 

[frodo]

6' max developed length on 3'' , yes you can wet vent the toilet with the lav

how are you lplumbing it?

 

[Jimongee]

Thanks. Sorry for my tardy response. Been in the basement cutting and gluing. I used cell core schedule 40. 2" on all venting except the 3" main stack. I used 3" on all toilets and in the 5 bathrooms (3 bedroom baths, and 2 powder rooms) and connected all runs to a 4" schedule 40 that runs approx 65' the length of the entire house with 1 90 swings over to the sewer out. I know...overkill but just trying to do it above code...

 

[frodo]

please submit a picture of what you are doing..i am not following

i am a visual type person..

 

[Jimongee]

Again this is my new construction home. There are 3 baths and 2 powder rooms. I am in process of doing my own plumbing. I have installed 2" vents at every fixture in the walls intending to connect in the attic. My home me will be a septic sewer system. My question considering that I have 2" vent network covering everything...is it required that I also plumb in a 3" main vent stack up and out the roof. If that is the case then of course I would route several of my 2" venting into that 3" stack. And if I do need that stack...is it required it is plumbed as close as possible to the line out to the septic. Even though I read and read the code examples I am still not sure. Thanks for any help you can provide. I am thinking I have been smelling too much blue glue!, Jim in Tennessee