NIHI C-108 Commercial Plumbing Inspections

Learning Objectives

Upon completing this module, students will be able to:

• Distinguish the components and operational principles of commercial plumbing systems compared to residential systems.
• Identify and evaluate interior water supply, DWV systems, and fixture performance within a commercial facility.
• Recognize material types and construction practices used for water distribution and drainage in various occupancy types.
• Detect common plumbing failures including leaks, clogs, backflow risks, and inadequate water pressure.
• Verify compliance with ADA accessibility, backflow prevention standards, and health code requirements.
• Conduct a visual plumbing inspection using structured protocols and real-world criteria.