Why is a visual test required for newly installed plumbing systems?

A visual test is essential for newly installed plumbing systems to identify any visible defects. This step is crucial because it allows inspectors and plumbers to spot issues such as improper installation, misaligned pipes, and other potential problems that might not be evident through other testing methods. By visually inspecting the system, one can ensure that all components are in place, correctly installed, and free from damage that could lead to functionality issues or leaks in the future.

While checking for leaks is a critical part of ensuring system integrity and is often a focus during inspections, the primary goal of a visual test is broader and includes assessing the overall condition of the installation. It's also important to note that verifying the presence of fixtures, while necessary, is more about completeness than defect identification. Efficiency checks, while relevant, typically involve functional testing beyond visual inspection. Therefore, identifying visible defects encompasses a more comprehensive examination that is vital during the early stages of a plumbing system's life.