U.S. Department of Energy Energy Efficiency & Renewable Energy U.S. Department of Energy Energy Efficiency & Renewable Energy

Plumbing (Domestic Hot Water) Systems

Proficiency Level 1: Remember

List the two primary purposes of plumbing and the three overall parts of a plumbing system.

Describe the difference between a building code, a building standard, and a plumber’s license.

Define key plumbing terms, including backflow, back siphonage, branch, building drain, drain, inceptor, potable water, septic tank, trap, vent stack, water flow controls, and water supply system.