To Draw Straight Pipes

Click Home tab Create Design panel Pipe Network drop-down Pipe Network Creation Tools Find to create a new pipe network, or Pipe Networks tab Modify panel Edit Pipe Network Find to select an existing pipe network.
On the Network Layout Tools toolbar, click or .
Specify the start point for the pipe.
Specify the end point.

Tip: You can use transparent commands for pipe network objects when you are prompted to specify radius, length, or station offset.