Master bathroom remodel in Oregon - venting questions

[jut]

Hi everyone,

Amazing forum here - so much helpful information!

I'm in the midst of a second floor bathroom remodel and moving the toilet location has caused some headaches. Can I vent my toilet through one of the lavs in my vanity by switching it to 2" piping and continuing that 2" all the way to the point in the attic where it connects with another 2" vent and penetrates the roof? The toilet would be within 6' of the lav that has the vent coming off of it. Ideally, there would be about 16" of horizontal piping involved in that wet vent (from the lav drain in the wall down to under the floor and over one joist bay to meet the water closet drain line. It is this portion that the local inspector seems to think is not acceptable.)

Secondary question - is a 45 degree toilet flange connected to a 45 degree elbow acceptable for the toilet drain connection? A closet elbow or long sweep 90 are too tall for the amount of vertical drop I have available.

Thank you very much in advance and please feel free to ask any questions about my child like description and drawing!

 

[Terry]

What you describe would pass in Washington State which uses the same UPC code.

 

[Sponsor]

 

[jut]

Hey Terry!

Thank you for the quick reply. Does it matter if the shower is not part of the wet vent? It's plumbed with a separate drain and has it's own 1.5" vent currently. In reading parts of the codebook and talking with others at the city there was mention of the whole bathroom needing to be wet vented?

 

[Terry]

You can't flat vent the shower unless it's wet vented. It must rise vertical. A flat vent can't be cleared, whereas if the lav was venting, you would snake from there.

Or you can vent everything there on the vertical.

 

[jut]

Hey Terry,

The shower has a standard vertical 1.5" vent in the wall that I can run the trap arm to. It would be about 3' away from the shower drain to the vent in the wall. I just wanted to make sure that it's okay to have it on its own with a traditional vent setup while the lavs wet vent the water closet?

Is the water closet 45* flange into a 45* bend acceptable as well? Thank you again!

 

[Terry]

The toilet can use the 45 angled closet flange with a second 45 angle.

 

[jut]

It's been a while, but I wanted to circle back to say thank you for this forum and everyone's help. I passed final on our master bath a few months ago. It took a loooong time, but it was done right. Inspector even asked if I was a plumber at rough in haha. Thank you again!