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Forums >> Revit Systems >> Technical Support >> PLUMBING LAYOUT
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Joined: Thu, Jan 8, 2009
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Hi Everyone! I am new to revit...had some training and now I am on my first job. I am having a tough time laying out a basic sanitary plumbing system. Hopefully someone can help. The problem is described below: I have placed toilets in a public washroom. I have placed a floor drain nearby. Now everytime I go to create the sanitary system, the sloping of the piping goes to one of the toilets (revit thinks it's the lowest point - even though I've placed a base at -2000 away from all these fixtures). Can someone help me with this? Also, are there any mechanical engineers who found revit useful? I am finding that as each day passes I'd rather stick with AutoCAD as I get far more freedom of design. Thanks for any feedback/help! Joe
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Joined: Fri, Sep 22, 2006
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I haven't dealt with this one but you will eventually be suprised how useful Revit can be. The piping commands are not that complicated you maybe able to use the tab key to shift the pick up points this works on walls and other types of joins.
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Yes, I have an idea as to how useful it can be. Key word being CAN. Problem is getting there from here, and where I am right now, Revit keeps sloping the sanitary plumbing away from where I've placed my base (offset = -2000) and towards what should be the furthest toilet. This toilet is the furthest point from the city sewer connection, therefore should be the highest point. ARRRRRGGGGHHh!! Hope I'm not the only dum-a$$! If anyone's had this problem and solved it, I'd love to hear your story.
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Are you in a plumbing plan or mechanical plan? You will also want to use sections or elevations to get a better idea what is going on. When you use the pipe tool note that on the bar above there is an item for slope. Also in section when you highlight the pipe you can adjust the ends and the slope. Hope this helps.
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Yup, I am using all those features, slope, sections, I'm in the plumbing plan and imported all the plumbing families and pipe fittings, etc. Problem is when I want to manually draw a pipe, as soon as I get to the point where I want an elbow, I click to finish that portion of pipe and prepare to turn 90. That's when the curse program says, "no auto-route solution was found". NO curse! I wasn't looking for a solution...that's why I'm drawing this manually idiot! Speaking of solutions every time I set up a plumbing network looking for a solution, Revit answers back with "no auto-route solution was found", followed with some plumbing pipe fragments scattered throughout the drawing within the vicinity of the fixtures. I have set the offset (-450). If I don't place a base Revit says no auto-route..... If I place a base Revit starts at that point and slopes down towards my toilets...WTF????? Now just recently I have managed to trick Revit into laying out a partial system. But it still is not connected to my sewer line and one of the toilets are still not connected. And I had to trick the curse thing to get this far, plus I am not able to replicate the trick. It seems that Autodesk rushed out the MEP package. Revit looks ok for architects and structurals for the main purpose of giving some visuals to building owners and investors, but apart from that, mechanically it's a joke.
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Hello, I am still gonna try something here.....I laid out a sanitary system in a mens / womens public washroom. No sloping. It worked out ok.....still had to do some manual tweeking here and there, but the plumbing is there now. Question: is there any way for me to tell Revit where my highest and lowest points are, and Revit pitches the system as shown at a user specified %? That is, none of the pipes as drawn right now will change, only their connection elevations and slopes. I know I sounded very annoying, perhaps it's from trying to make things work like it did in AutoCAD. Hopefully someone can share thoughts on my question above, or anything in general. Thanks!
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"What you've just said is one of the most insanely idiotic things I have ever heard. At no point in your rambling, incoherent drivle were you even close to anything that could be considered a rational thought. Everyone in this room is now dumber for having listened to it. I award you no points, and may God have mercy on your soul." revit it not autocad. i have been creating everything, schedules, plans, risers all right out of revit. it can be done, but it takes work, not im not saying that your not putting that in. you might want to check out the routing modifying options.
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Eddie, I admit it! There! In the past 2 weeks, I managed to work something out....but still haven't got the auto solutions to work. I'll get there.....btw...my rant probably had a lot to do with my new job, longer commute, traffic...etc...etc.... Can you take a look at the attached? It's a screen print of some urinals. I'm trying to get a double wye to get into the correct plane and hook up to the two urinals on the left side, and tie into the main sanitary below them. I can get the wye in, but I can't get it to rotate to the correct plane. Everything's been drawn in manually, and I still need to figure out how to get the pipes to size automatically. Still hacking away....wish me luck Joe
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i should say good luck, phase 4? check out the phases of a revit user...there is no attachment, but i would assume you could cut sections... do it in 3d... rotate it by selecting disjoin and then simply reconnect it...
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This might be too late to help with your sloping problem. If you have figured it out, please post your solution for others to see. If your contract allows you to, you may want to just draw your piping in level and indicate on the construction documents what your inverts are with text. It is usually such an easy calculation that it might not be worth your time to try to get revit to slope the pipe. This will be much more useful if your piping is in the slab and you don't have to worry about interference with other trades. If your piping is in the ceiling you may need to follow the piping and do the calculations at any possible interferences.
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as requested, here's how I go about doing plumbing: In my case, I am working with a very odd shaped building having no straight lines anywhere. I have tried using autoroute solutions for training classes with a square building arrangement, but even then for sanitary it is no good since it doesn't insert P-traps anywhere. I've considered just spec'ing in writing "all lavs, sinks, fds, etc....shall have P-traps...." something to that effect, but I decided to use the actual P-traps. I do things manually and slope everything so I can get the benefits of all inverts being automatically calculated (actually they are spring-line elevations....you need to tweak this thing to show inverts). This way, if there is a revision, I can go into a section and move an elbow up or down and all my downstream/upstream piping will move with it, thereby automatically re-calculating inverts, and automatically being notified of problems. You need to work on the farthest group of plumbing fixtures from the sewer and tie them into the sewer first. Then go to the next closer group of fixtures and tie them into your "main". Sometimes they drop into the main. Depending on how far downstream your next group of fixtures is, you might not have enough room for an elbow down, pipe, and sanitary tee, so you might need to start at the intersection point at the proper elevation and work BACK towards your second group of fixtures. Make sure you slope the pipe UP when you run backwards. To determine the proper elevation where you will tie into the main, use SPLIT to split the main at the point where you figure you will tie in. It'll give you a union which you can pick and get the elevation. Then draw your sanitary pipe starting at that elevation, sloping up, back towards your fixtures. Delete the union (which will rejoin the main) and take your branch line and tie it into the rejoined main. It will hook up at the same plane so you won't (likely) get a funny adapter or a weird fitting that no plumber in the world would actually use. I keep doing this till I tie in all my plumbing fixture groups and drains and such. In the beginning it's a little frustrating, but over time (after many revisions or repetitions) you develop a sense for it and you get faster and more efficient. My main problem with plumbing now is family related. For example, I need a running trap (gang trap). And I do not know how to properly adjust or set up from scratch. I DID learn how to do boxes such as air handlers (I posted about this new breakthrough...click on my name and you'll see a forum entry on it). So hopefully in the near future I will be able to draw upon that experience. Related to this problem is working with public toilets. These water closets have what you probably all know as carriers which are bolted to the wall of the pipe space. It's connection to the water closet is adjustable in height so that as the sanitary line runs horizontally picking up downstream WCs, I can keep the WCs at the same elevation while still connecting to the progressively lower sanitary line. I hope you guys can follow what I'm saying....it's hard to communicate plumbing issues in text....probably can instantly communicate this with a picture. In anycase, I am looking for a proper solution to this, should I make a carrier family? If so, I believe it will be problematic like I what I am going through with the running trap. Or is there a way around this? Hope someone can help! Look forward to any suggestions. Joe
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I know what you are talking about with the group carriers. Unfortunately, I don't have any idea how to create a carrier family that would mount properly in the chase and have the connections adjust in height from one fixture to the next. If you create a carrier family with the proper slope from gang in to gang out, then you would have a problem with attaching the individual fixture to it. The only quick fix that I can think of is to handle it with noting/spec or a standard detail. I don't typically shown the carrier when working in AutoCAD. It kind of takes away some of the appeal of a BIM model, but it could be a way to get what you want for Construction Documents. Thank you for posting your solution to the sloping issue. I know that it will help me out a lot.
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i have a bit of a problem with the filter. i am getting the pipe colours to come in thanks to your help but there are coming in coloured under the category system name when i chose system type the colour goes. what is the difference between system name and system type also what is auto solution route.
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off the top of my head if i am correct and anyone feel free to correct me but the difference between system name and system type is that the system type is dependant on what is in the connectors so by default the filter will read something like filter by: system type that contains sanitary....the system name can be found if you open the system browser (F9 shortcut) you can expand the structure and you will see all the system names there...if you are not creating systems and only leaving the default systems i suggest filtering by another parameter.
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