When you start or end a plumbing run at a piece of equipment or a fixture, the start point or end point of the plumbing line snaps to the nearest connection point on the equipment or fixture. Simple fixtures and equipment, such as a utility sink, typically contain only one connection point. However, complex fixtures and equipment, such as tanks and lavatories, often contain multiple connection points. Some even have connection points that belong to different systems, such as both a supply system and a drain system.
To draw a plumbing run from equipment or a fixture
The specified plumbing line style determines its appearance and function. For example, it might determine how the line is displayed when it crosses other lines. For more information, see Configuring Styles for Schematic Pipes and Fittings.
The system specified for a plumbing run determines the fittings that are inserted as you draw, as well as other properties. For more information, see Configuring Plumbing System Definitions.
The elevation and the default run direction of the plumbing line are dependent on the connector assigned to the fixture or MvPart. Typically, the run direction is perpendicular to the fixture or MvPart.