Bathroom WL and venting question -

[DogePlumbing]

Hi -

This is where I am currently at this putting the toilet into this space. I'm not 100% sure on the venting. Is it ok on how its currently done with that short section of horizontal venting? The vent stack goes directly up into the attic and isn't a wet vent. The long sweep wye go horizontal for about another 20", then goes vertical down the main stack. Upstream of the long sweep is going to get a bushing to 2" and there will be a shower and dual vanity. The vanity will wet vent the shower with the vanity vent going directly into attic and joining with the toilet vent stack before exiting the roof.

https://i.imgur.com/ZaF29a7.jpg

https://i.imgur.com/40Nt21s.jpg

 

[Terry]

The santee should be changed out to a wye fitting with a medium 90 above for the lav and shower.

 

[Sponsor]

 

[DogePlumbing]

I think I got her figured out. thanks for the help Just need a vent 90 for the point where it goes vertical so I have some slope on the short horizontal piece to drain back.
https://i.imgur.com/nHhawmg.jpg

https://i.imgur.com/7JnjfU0.jpg

 

[Terry]

You can't have a vent 90 on the waste portion, only on the vents above flood level, typically at 42".

 

[DogePlumbing]

it's not a waste, it's a vent only line going up into the attic. Does that make the horizontal vent problematic?