Need advice to remove Vent/Drain cross (Cali UPC)

[CaliforniaPlumber]

Hi,

I want to save 6" of space by removing the vent and drain crossing each other (current wall is 13", I can bring it down to ~7" without it).
Any advice on how best to proceed? This is California UPC.

I labeled each drain/vent.
While the easiest would be to move the 2" horizontal vent between the joists, unfortunately the 3" W.C. is dead center in height on the 2x12". This prevents me to be able to drill holes in the joist (2.5" hole, that has to be minimum 2" from edges).

Could a wet vent solve the issue here?
Thank you

https://imgur.com/a/6BUKRD0

 

[Jeff H Young]

I cant look at the picture cant explain it but just not readable to me.
But Id cut that vent out and go generaly straight up offsetting if nessesary to get in joist bay and go down joist bay enough to get around the w/c go over and tie back in to the vent , pretty much like you said but travel around the w/c

 

[Sponsor]

 

[wwhitney]

Your labels aren't 100% clear, because of so much text. A single letter on each pipe, with a key not overlaid on the picture, would be clearer.

Seems like if your wall is still going to be 7", there's room within it to cross a 3" drain pipe and a 1-1/2" vent pipe. The ODs are 3.5" and 1.9" respectively.

Cheers, Wayne

 

[Jeff H Young]

its a mess to look at but as I said just run down joist bay around the toilet. vents dont need fall in this situation just as long as they arent back graded I give them just a bit of fall unless its convieniant to give more