There is a philosophy in addressing the concept of a new system and/or some existing system technical problems: If you can't draw a picture of it, you don't understand it. The reverse is also generally true. The ability of sketching a quick diagram ... enables a Licensed Engineer to achieve understandable simplicity and readily identify the best practices and solutions, serves as an aid to the installing agents in interpreting real construction documents. Well-developed diagrams, will immediately reveal the design philosophy of any system.
George Nestor, P.E.
GNA Consulting Engineers