How often must plumbing systems be inspected according to the UPC?

The requirement for plumbing systems to be inspected at various stages throughout installation is crucial for ensuring compliance with safety standards and building codes. This approach allows for checks to be made at critical points during the installation process, which can help to identify and rectify potential issues before they become more serious problems.

For instance, inspections at specific stages, such as after rough plumbing is completed but before walls are closed, can ensure that the installation complies with the Uniform Plumbing Code and that all components are properly aligned and functioning. This proactive method of inspection contributes to preventing costly repairs and can ensure that the plumbing system functions efficiently and safely once completed.

Inspecting only at completion or on a set annual or monthly schedule would not adequately catch problems that could arise during the installation process, potentially compromising the system's integrity and safety. Thus, it is important that plumbing inspections be conducted throughout various stages of installation to foster a high standard of workmanship and adherence to the code.