There are people out there who would disagree with me, but in this instance I simply don't slope the pipe. I work for a consulting engineer and do design, not "gnat's ass" coordination like contractors do. I know how to do it, but the amount of time it takes to get the sloped piping to work correctly is cost-prohibitive given the slim fees we're paid. What you're describing is a good example of how Revit can draw you down a time-wasting rabbit hole and for what real benefit?

I know it's not the "BIM" way but compromises have to be made when we're paid the exact same amount of money for Revit as we are for CAD. If you're getting paid for "gnat's ass" level work then go nuts, but 99% of my jobs only care about the final 2D drawings.

As for your question... if this is really important to you, try using flex pipes to make the connection between the sloped hard pipe and the non-sloped carrier. You can scoot the pipe right up to the carrier so that the segment of flex pipe is almost non-existent.

Thank you for your response, I was trying to see if there was a solution for one of our detail people who was getting frustrated with having to insert a carrier, make the adjustments to it, and then move to the next one.

It's not easy. Along with Necro's post, I too don't slope this at all - it's in a plumbing chase and the guys in the field will handle it.

I agree with you 100% with Revit. In fact, plumbing in general, I'm not taking any more jobs for construction shop drawings. I cannot use Revit anymore for detailed plumbing for water and DWV. It's too difficult. I need to maybe give AutoCAD MEP a shot again for 3D BIM design for contractors. For a plumbing design on an MEP set for a consultant engineer I will do all day long in Revit.

-TZ

You know whats funny? Im one of the people that asks for Sloped Pipes from my MEP engineers.... And even i wouldnt care if it was sloped IN the chase wall.

Its the runs that go 50 feet across the underside of a structure at 1/4" per foot, that we really care about- and get value out of- having sloped in the model.

Within a stud cavity behind a bathroom? Pffft. Model it flat and move on.

BTW, i agree with Tannar- For FABRICATION level modeling, by far the best models i get are from the subs using AutoCAD based products. Then again, ive never understood why some folks try to FORCE subs to use Revit. I DO want my Design Engineers in Revit, and pipes requiring slopes are a requirement in our BIM Standards, but that seriously is for cases where it makes a difference in coordination (above ceiling, under roofs, under access panels, and so on). Inside a Chase wall- Unless its a Medical Headwall with some serious utilities going in there (Med Gas and massive framing)- i wouldnt bother.

As an MEP Designer, I have to agree. There are various tricks to avoid it (2 pipes above each other with a height difference equal to the max and min slope points, or stepped horizontal pipes every 2m or so..) but waste water pipes should be sloped in the design phase. They are one of the most inflexible parts of the design to coordinate (They cant go up over something and there are a lot of restrictions on connection spacing etc) so its better to do it correctly from the start and avoid surprises later.

I find its actually quite easy to sketch sloped waste water systems with placeholders and convert later. Or even when using pipes, its not so difficult if you regularly use 'Inherit Elevation' and slope up to draw pipe stubs from the main pipe you want to connect into, and then use align and trim in a 3D view to join up all the pipe runs. You can snap to the intersection point of the main and secondary pipes that you want to connect.
The biggest complaint I have about how revit does slopes is that the 'fixed' slope values are not fixed enough. If you stretch or rotate a pipe it changes to something stupid like 1:97.8539 and you need to keep adjusting to keep it consistent...

Thank goodness for rounding on slope tags...