What is a significant issue that a residential plumbing inspector typically looks for?

A residential plumbing inspector focuses on various critical aspects of plumbing systems, and one significant issue they look for is the improper installation or use of plumbing materials. This is crucial because incorrect installation can lead to a range of problems, including leaks, water damage, and increased risks of health hazards such as cross-connections that may contaminate potable water supplies. Using non-compliant or inappropriate materials can also result in system failures, increased maintenance costs, and potential violations of local building codes.

Inspectors are trained to identify issues such as improper pipe sizing, inadequate support for piping systems, and the use of materials that are not suitable for specific applications. This attention to detail ensures the longevity and reliability of residential plumbing systems, protecting both the property and the health of its inhabitants.