What are the inspection requirements for underground plumbing according to UPC?

The requirement for inspecting underground plumbing before being backfilled is crucial for ensuring the integrity and functionality of the plumbing system. Inspections at this stage allow plumbing professionals to verify that the installation meets all code requirements and has been performed correctly. This pre-backfill inspection is essential to identify any issues such as improper connections, incorrect materials, or inadequate support that could lead to future leaks or failures once the system is buried.

Once the underground plumbing is backfilled, it becomes significantly more difficult to access and rectify any potential problems. Therefore, ensuring that everything is correct before being covered enhances the safety and reliability of the plumbing system in the long term. This process helps protect the health and safety of the occupants by ensuring that the plumbing will function properly without risking contamination of potable water sources or causing structural damage due to leaks.