Link Elements
Link elements connect the other elements to form the sewer network. The link elements are the conveyance elements that carry flow through the network to its eventual discharge point at an outlet. You can add any of the following link elements to your model, depending on the link element’s location within the network:
When you click the Layout tool on the Layout toolbar, you select the type of link element to add (pressure pipe, conduit, channel, lateral, or gutter), then select an element. You can place multiple elements with different kinds of connections using the Layout tool.