Populating Vent System for Classroom Sink: A Step-by-Step Guide

Designing a Comprehensive Vent System for Classroom Sinks: Detailed Implementation Process in Revit

Explore a comprehensive walkthrough on how to populate a vent system for classroom sinks using a 3D view. Learn how to draw vents, adjust pipe sizes, and connect everything correctly to create a functional and efficient system.

Key Insights

  • The tutorial provides a step-by-step guide on how to draw a vent coming off the sink's pipe in a 3D view and how to adjust the pipe size, using the second floor sinks as the starting point.
  • It is important to ensure that the connector snap is used when drawing and connecting pipes for the vent system to ensure they are on the same plane as the section cut.
  • The system can be adjusted and fine-tuned as needed, including changing the height of the pipes, ensuring it fits within project specifications, and checking for any potential clashes in the field.

Note: These materials offer prospective students a preview of how our classes are structured. Students enrolled in this course will receive access to the full set of materials, including video lectures, project-based assignments, and instructor feedback.

We want to go ahead and start populating our vent system for our classroom sinks. We looked at it in 3D here.

We deleted those portions that were above this pipe. What I'm going to go ahead and do is go back. I'm going to close that 3D view.

I no longer need it. So, you can see that we have the section here, and there we go. What I'm going to do is draw a vent coming up off of this—right off of there.

So, what I can go ahead and do is go to my—I'm going to do all the second-floor ones first. So, let's go ahead. I'm going to go to my Systems.

I'm going to go to Pipe. Let's go with two-inch Vent. There we go.

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I'm going to make sure I get the connector, drag up, and just go straight through. We can just go up to—what level is this? We'll go to Library Top. There we go.

And I'm going to go through and do all of the second-floor ones first. So, make sure you get the connector and see—is it wanting to go to that level? I'll get close to it. That's fine.

We can always come back and clean that up later. Get that connector, go up, make sure you're going to that Library Top. It seems like sometimes it's wanting to do it, but that's okay.

There we go. And the reason why I'm doing these upper ones first is because you'll see how we tie in the first-floor ones. So, there's that—up to there.

Perfect. Now, once we get past this P-trap, I need to establish a vent for this lower sink. All right.

So, what I'm going to end up doing is—now that I have these here—I'm going to tie it into this guy here. Since I know these stack, what I'm going to end up doing is start right here and come out 45 degrees. Then I'm going to come up and tie back in.

See how that works. I don't know why this switched to a three-inch though. So, let's retry this.

I want it to stay a two-inch. So, I'm going to go to Pipe. Let's see—automatically connect.

I don't have it set to inherit elevation or anything like that, or match type, but let's go to two-inch. I'm going to make sure it's a Vent. I'm going to go ahead and pick on the centerline.

It changed it to a three. Let's change it to a two. It's just one of those things—Revit is trying to be smart, but sometimes it's not.

There we go. Go up, and then I'm going to tie it back in here at a 45. Then I do the same thing.

Come over here. PI—I have a two-inch right now. Come here, drag over.

So, I'm adding to the system. I need to change it to a two-inch pipe though. Revit is automatically wanting to make it a three-inch, and then tie it back into the vent here.

Same thing. So, I'm going to go Pipe, two-inch Vent, start here. It changes to three-inch.

It's just the nature of the beast. Make sure you change it back. There we go.

Go up there. I just tied it. One thing is you need to make sure you're clicking on connectors as you do this—or snaps.

When you do this, if you don't click on the snaps, it's just going to draw your pipe at the same plane as the section cut. So, here I'm going to go Pipe. Everything else is good.

Two-inch. Let's go ahead—I'm going to start and it changes to three-inch.

Change it back to two. I wish it didn't do that, but it does. Then just tie into here.

There we go. Same thing here—Pipe, two-inch.

There we go. Change it back to two-inch, 45, come out there.

Come up here. And there we go. We finished that side.

Now we’ve got to do the other side. So, I'm going to go ahead and flip my section, drag this guy down. There we go.

We're going to start off—PI for Pipe. I’ll start off by drawing—there we go—going up to our level line here.

Again, I'm going from the top connector, going up. Top connector, going up. Connector, going up. So again, remember you're trying to get that snap—that is the connector snap.

It has an X in the middle and a circle around it. You kind of have to do this in section. There we go.

We're all good there. Again, now I'm going to go back to this, click on the pipe, change it to two-inch, 45 out a little bit, go up—Pipe, two-inch, change it back to two-inch. Again, it's just one of those things you’re going to have to remember.

And even sometimes, you still need to check your settings when you do this. Right—two-inch. So, you're able to add in this kind of non-wet vent system if you need to. There we go.

Keep continuing. Change it back to a two-inch. There we go.

One last one on this line—45, come out, come up, and 45 into that. And you could grab this—and if you wanted to tighten this up, you could. You can slide this up and down.

You know, if they came into the project and said, “Hey, we only want this to be a certain height, ” or whatever, you could go ahead and do that. We're just going to run those vertically through the roof.

Everything there is good. Let's take a look at it in 3D—and it’s looking pretty good. We kind of have this little plumbing stack going on there.

I know we have some clashes and things like that—that's okay. Sometimes these little lines get worked out in the field too.

There we go. It’s looking pretty good. Cool.

We'll finish up with the classrooms on the other side.

Tyler Grant

Revit MEP Instructor

Tyler Grant is a BIM Manager a Delawie. A dedicated, goal-oriented, and experienced architect. Tyler has managed multiple design/build BIM projects from inception to construction completion, through all phases. Technology-driven and experienced educator to train and instruct users, both novice and advanced, in the workflow and processes of the modern architecture, engineering, and construction field. 

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