Discover the process of adding a waste system to a plumbing system using the Revit MEP tool. This article outlines the steps to create a new type of pipe for the waste system, rename existing pipes, adjust routing preferences, and implement a slope for efficient waste disposal.
Key Insights
- The Revit MEP tool allows users to create a new type of pipe specifically for the waste system, which can be duplicated from existing ones and then renamed for clear distinction.
- Routing preferences for the waste piping system can be adjusted, with options to change the pipe type based on project needs and requirements. The use of different materials such as polyvinyl chloride (PVC) can be selected instead of copper for waste piping.
- The tool also includes the option to implement a slope for the waste pipe, which is critical for effective waste disposal. The slope can be customized based on specific values and the necessary adjustments can be made in the mechanical settings.
Welcome back to the CAD Teacher VDCI video course content for the BIM 321 course Introduction to Revit MEP. In the previous videos we went ahead and actually got our plumbing system, our domestic water system done. Now we want to go ahead and start adding in our waste system, because obviously if we have water supply coming to the toilets and the urinals and the sinks, we need to go ahead and create a waste system.
So the first thing I want to go ahead and do is, is let's go ahead and take a look at pipe. Now we've been using the standard pipe for all of the hot and cold water supply. Well, I want to go ahead and we're going to create a new pipe for the waste system, but we're also going to go ahead and rename this one here.
So I want to go ahead, while I'm in the pipe command, let's go to edit type. I want to go ahead, let's go to rename please. And please change the name from standard.
And we're going to go ahead and change it to domestic water supply. So it's going to be for both the hot and the cold water. I'm going to go ahead and hit OK.
And there we are. Now I want to go ahead and duplicate this for the waste. So I'm going to go ahead and duplicate.
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Please change the name to waste piping. And I'm going to go ahead and hit OK. Now even though we've changed the name and everything, we've duplicated the domestic water supply.
We want to go ahead and actually change our routing preferences and change our pipe type. We don't really necessarily need to use copper for our waste piping. So for to do this, let's go ahead and let's go to our routing preferences please.
So I'm going to go edit. I want to go ahead under pipe segment here. Let's go ahead and please change that to polyvinyl rigid or polyvinyl chloride PVC schedule 40.
I'm going to go ahead and leave all of these the same. We could if I wanted to. Actually, let's go ahead and load some PVC families.
These generic ones aren't going to really be correct to the size for the polyvinyl chloride or PVC piping. So I'm going to go ahead and load family. We want to go ahead.
I'm going to go to pipe. Let's see here. Let's go to accessories.
Obviously, it's not there. Under fittings, PVC, schedule 40. Socket type is fine.
So then we can go ahead and actually bring in specific ones. So I'm going to go ahead and here is some other fittings. We're not going to bring any of these in, but we'll use these later on.
I'm going to go ahead and select all of these here. I'm going to go ahead and hit open. I'm going to load all those in at one time.
Again, I selected those by clicking on the first one, holding shift, clicking on the second one. Now that I've loaded those into the project, I'm going to go to here. I'm going to choose my elbow PVC.
My T, that's fine there. T junction, PVC. Cross, PVC.
Transition, the coupling reducing, PVC. The union coupling, PVC standard. Let's go ahead and change that cap to be our PVC.
We have a cap and a plug. We're just going to go ahead and use the cap here. We've kind of set up our polyvinyl chloride and all that information, which is going to be great.
Under the minimum size, we're going to have a minimum size of a half inch and a max size of 12 inches. If we needed to add sizes, I'd go in here into segments and sizes. As you can see, if I have to change my segment, I'm going to change my segment to the polyvinyl chloride, schedule 40.
See the half inch here is the nominal size. Then I have an interior diameter and an outer diameter. As you can see, the half inch is slightly larger than a half inch at 5 eighths.
Three quarter inch, slightly larger. One inch, so on and so forth. You could add sizes, custom sizes, based on your project needs and requirements.
Let's say we needed a 14 inch pipe. I could go to a manufacturer website, get the interior diameter and the outer diameter, and add that to this size list. We're going to go ahead and leave that as is for now.
I'm going to go ahead and hit OK. Hit OK here. We've now gone ahead and created our waste piping family.
The last thing I'm going to go ahead and do is just hit OK here. Now, what I'm going to go ahead and do is I want to go ahead and we want to be at where you're currently on the view. In our project browser, we're on the first floor plumbing plan.
If you're not there, please navigate to that first floor plumbing plan, but I think we should all be there. The first thing we want to go ahead and do is we need to go ahead and put in our pipe. Our waste pipe from connecting out here and going up.
The issue here is we need to slope it. We're going to be sloping from here, sloping up. As we come from the connection point, that's going to be the lowest point in the pipe.
As we go away from that connection point, that's going to slope up. I'm going to go ahead and let's go to our pipe. I want to go to waste piping here.
Please make sure this is waste piping. Even though we've changed the type of piping, we need to make sure our system type says sanitary. If I put waste piping here, but then I specify either hot or cold water, it's not going to go into the right system.
Please make sure that your system says sanitary. Everything else there is good. I'm going to go ahead and let's leave it with a six inch.
That will be the main coming into the building. Then I want to go ahead and change my offset. Please change your offset to negative three feet because we want our building or we want this main pipe to be underneath the ground.
The other thing we need to go ahead and do is slope. Slope piping in Revit MEP is a little bit interesting, but it's very easy to use once you get the hang of it. To start a slope, I have this little slope here, the slope panel.
I would go either slope up or slope down. If you would please, let's go ahead. Since we're going to be using slope up, let's use slope up.
As you can see, it highlights this slope value here. If I pick here and drag back, you can see I already have some slopes predetermined. Let's say we want to add a slope.
In this case, we're not going to, but I still want to show you this functionality. Here under the slope value, we have some slopes already established. Zero over twelve, eighth inch over twelve.
For every twelve inches it goes over, it slopes an eighth of an inch, so on and so forth. Let's say we wanted to go ahead and actually look at that. I'm going to go ahead and hit escape for a second.
Under the plumbing and piping, you'll see here that I have mechanical settings. This little arrow here will take me to all my different mechanical settings. I'm going to pop that out.
As you can see, it takes me back to the same segments and sizes here. If I scroll down, you can see I have slopes. Please go ahead and click on slopes.
We could go ahead and add slopes or delete slopes based on what our project needs. I could go new slope if I needed to, specify that slope value, and then it would go ahead and give me that. We don't need to specify a new slope, but I still wanted to show you where to go for the mechanical settings slopes to add different slopes in.
Go ahead and just hit OK. Now, I'm going to go back to my pipe command. I'm going to go ahead and all the settings stay the same, so six inches, negative three feet.
I'm going to go ahead and zoom in. I notice that my thin lines isn't on, so I'm going to go TL for thin lines. It tends to be easier to work.
I'm going to go ahead and start about out here, click, and I'm going to drag up. I'm going to go ahead and end it about right here. Now, remember, even though we are seeing both pipe systems, these are higher up.
I'm going to go ahead, select this, and I'm actually going to go ahead and bring it down to center it in there, and there we are. Perfect. Now, maybe we don't necessarily want to see the actual hot and cold water piping right now since we're focusing on the waste piping, so we can go ahead and actually hide that information by the use of what we call filters.
If you would please go ahead and hit VV for your visibility and graphics overrides, and I'm going to go ahead, and we've been using the model categories and the annotation categories, but I want to go ahead and go over to the filters tab here. Go to filters, and as you can see, I have the hydronic supply already in there, but we don't have anything specified under the hydronic, but we want to add some filters, so I want to go ahead, let's go add here, and I want to bring in my domestic cold water and domestic hot water, and I'm going to go ahead and hit OK, and then I'm also going to go ahead and uncheck the visibility, and that's going to go ahead if I hit Apply and hit OK. As you can see, it's hidden those pipes, so I can focus on squarely on just doing these pipes here.
I'm going to go ahead and pause this video here. In the next video, we're going to go ahead and start adding to this waste system and connecting it to all the different fixtures that we need to connect it to. See you then.
