Why isn't my pipe round?

Have you ever tried to show a pipe crossing in profile view or section view and it looks like the following:

As you can see from the screen capture, it looks more like a hex nut  rather than a pipe.  The cause of this is a system variable called FACETDEV.  The default value for the variable is set to .5 feet.  This variable works very similar to how the mid ordinate distance does for contours.  Civil 3D is drawing small line segments to represent the circular pipe.  If you change the variable to say .01, you end up with what you see below.

This is probably what most of you would expect to see.  I would like to point out that this variable will hold if changed in your corporate template, meaning you should only need to change this once.  Lastly, you may notice some drawing performance depending on how low you set the value, so you may need to play with it to get the right balance between performance and display.