To create a plumbing plan, a designer first draws all fixtures to scale size and makes sure they are not too close together. Mark the drain lines and vents for the fixtures, then add the supply lines. As the image suggests, the plumbing plan example drawing provides all pertinent information on the design of the plumbing system for a project, including line sizes and location, isolation valves, storage-tank capacities, hot-water capacities and locations, and drain locations and routings. A rough plumbing plan example shows the dining area, the bedroom area, the kitchen, and the bathroom area. EdrawMax and EdrawMax Online let you the best way to create plumbing plan examples for your projects or clients.