2.0

Table Of Contents
Drawing and Defining Conceptual Pipe Runs
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If you select a pipe run that you previously defined, then the Pipes Message
dialog box is displayed with the default pipe run name (the same as the
currently selected pipe run). To select previously defined pipe runs, click Yes to
update the calculations, or No to cancel the command.
If the polyline vertices have changed, clicking Yes recalculates the invert
elevations. If the polyline vertices have not changed, clicking Yes updates the
data defaults.
3 Choose the appropriate surface, then click OK to continue.
The Pipes dialog box is displayed.
4 Do one of the following:
n
Click On to use the current surface. The rim elevations are extracted from the
surface.
n
Click Off to not use the current surface.
5 At the next prompt, type a new run name.
You can now reverse the flow direction of the pipe run. By default, pipe runs
defined by the Define By Polyline command are established with the flow in the
direction the polyline was drawn. You should, therefore, draw the initial
polyline starting from the upstream node. If you drew the polyline starting from
the downstream node, the flow direction is reversed. If so, enter Yes at the
Reverse Direction? prompt to correct the flow direction.
If a surface was specified, it is loaded now.