Thank you for explaining this I feel a lot of people don’t really explain the venting part of shower plumbing .

Oh man. I learned this one hard way. Spent all day doing a redrain for a shower but I vented it wrong. I used two long sweep 90s and a combo wyi to connect the drain and vent and the inspector failed me. Boss told me what i did wrong and had to go redo it

Nice art work

gracias

Could you use a “cheater vent” at the sanitary-t here?

After long sweep 90 for your toilet is that a Tee or sanitary tee ? I think that’s supposed to be a wye isn’t it ? maybe I’m wrong just wondering

Nooooooooooooooooooooooo! Is that a horizontal dry vent I see. Those are excommunicado. Don't do it this way. Vent pipes need to rise 6 inches above flood level rim before going horizontal (less than 45 degrees with a level plane or the floor). You can do a horizontal wet vent but it doesn't look like anything else is going in that pipe once it shoots up in the wall and over. As a result that portion of the vent could definitely get clogged and be impossible to clean out.