Inspects water-supply systems, drainage and sewer systems, water heater installations, fire sprinkler systems, HVAC systems, and air and gas piping systems for approved materials, specified pipe size and connections, required grade and fitting, approved backflow prevention devices, required bracing, ventilation, air-and-water-tightness, and thorough penetration fire stopping systems. Ability to use machines, tools, equipment, and work aids of those commonly associated with this type of work, including, but not limited to, an automobile, flashlight, room thermometer, cellular telephone, code books, personal computer, software, measuring devices, hammer, screw driver, shovel, awl, camera, electrical devices, and personal protection equipment.