You can edit a pipe network using a variety of methods.
You can use the network layout tools toolbar to edit a pipe network.
You can use the Pipe Network Vistas to display all the components that are part of the pipe network.
You can use grips to move, shorten, or stretch pipe or structure objects, or to change the size of a pipe.
You can use the Storm Sewers extention to open and edit pipe networks created with AutoCAD Civil 3D.
You can change the flow direction on consecutive parts in a pipe network.
When you move a structure, all pipe ends connected to it move along with the structure.
You can use the Connected Pipes tab on the Structure Properties dialog box to quickly edit pipes connected to a single structure.
In AutoCAD Civil 3D, junction structures have built in resize behaviors that control how far you can move the rim, connected pipes, and sump up and down.
You can add a part (pipe or structure) to an existing pipe network.
You can select an existing part in a pipe network and replace it with a part that is the same type, but is from a different part family and/or part size.
You can split a pipe network into two pipe networks.
You can combine two pipe networks into one pipe network.
You can select a part in a pipe network and disconnect it from the part or parts it is currently connected to.
You can select a disconnected part in a pipe network, or add a new part, and connect it to other pipe network parts.
You can delete one or more parts from a pipe network.
You can delete an entire pipe network, erasing it from the drawing and removing it from the Pipe Networks collection in the Prospector tree.
You can create a copy of an existing pipe network.
You can rename some or all parts in a pipe network.
When multiple pipes enter and exit a structure, you may need to set pipe in and pipe out elevations to consistent, matching values.