What is one of the most critical aspects of a plumbing inspection?

Verifying compliance with local plumbing codes is fundamental during a plumbing inspection because these codes are established to ensure safety, performance, and quality in plumbing systems. Local codes are designed to protect public health and safety, which is why a thorough inspector must ensure that all installations adhere to these standards. Compliance means that the plumbing systems are constructed and functioning in a manner that meets all necessary requirements, thus reducing the risk of future problems, leaks, or health hazards.

While the other aspects, such as checking the color of the pipes, measuring pipe lengths, and observing the plumbing layout, can provide useful information regarding the condition and configuration of the plumbing system, they do not have the same level of importance as code compliance. Code compliance encompasses a wide range of standards that address the material, installation practices, and overall safety of the plumbing system, making it the most critical aspect during an inspection.