What should be done if a leak is detected during a system test?

When a leak is detected during a system test, the appropriate action is to repair the leak and subsequently retest the system. This process is essential because leaks can compromise the integrity and safety of the entire plumbing system. Addressing leaks promptly ensures that the system operates efficiently and prevents further damage, which can lead to more significant issues and costly repairs in the future.

Following a repair, retesting is crucial to verify that the issue has been resolved and that no additional leaks are present. This step provides peace of mind that the system meets required standards and is safe for use. Proper protocol dictates that any detectable leaks must be taken seriously, as even small leaks can lead to larger problems over time, such as water damage or structural issues.

The other options do not adhere to best practices for plumbing codes and standards. Ignoring a small leak can lead to worsening conditions. Sealing it with tape might offer a temporary fix but not a long-term solution, and only fixing leaks during routine maintenance ignores the importance of addressing issues immediately as they arise. Regular monitoring and immediate repairs are fundamental to maintaining a reliable plumbing system.