Toilet Vent help

[Jeff Broomhead]

I am renovating my 2nd story bath and looking for some feedback on a toilet vent. The system has a sink, WC, and another WC. The sink has a vertical vent, the first WC has a horizontal-vert vent.

Would appreciate feedback if the 2nd WC vent is configured properly. San tee off vertical waste stack, then 90 to vert section, 90 to horizontal, 90 to street 45 to vertical vent. Wondering if the horizontal section pitched with 3/8" slope would suffice.

 

[Terry]

The toilet can't drop into a santee on it's back. The crap spreads both ways when it hits the bottom. I wish I took pictures when I cut stuff out like that. It was disgusting.

The toilet vent can't go horzontal below the floor. You can use wye fittings, which are much better.
The toilet would have been offset with a wye and 90 off the main run. Then the poop would be directed downhill and not have to choose which way to go when it hit the bottom of the pipe run.

The double lav gits a double fixture fitting, not a double santee.

The double lav run in 2" could wet vent the toilet if it wyes into the line.
Santees can be used on the vertical, not on the horizontal like I'm seeing them.

 

[Sponsor]

 

[Jeff Broomhead]

The toilet can't drop into a santee on it's back. The crap spreads both ways when it hits the bottom. I wish I took pictures when I cut stuff out like that. It was disgusting.

The toilet vent can't go horzontal below the floor. You can use wye fittings, which are much better.
The toilet would have been offset with a wye and 90 off the main run. Then the poop would be directed downhill and not have to choose which way to go when it hit the bottom of the pipe run.

The double lav gits a double fixture fitting, not a double santee.

The double lav run in 2" could wet vent the toilet if it wyes into the line.
Santees can be used on the vertical, not on the horizontal like I'm seeing them.

Terry, thanks for all the feedback. It is truly appreciated.