What method is commonly used for septic system inspection?

The method of septic system inspection that is most widely used is visual inspection combined with camera assessments. During a visual inspection, the technician evaluates the visible components of the septic system, such as the tank, the distribution box, the drainage field, and any other accessible parts. This allows for an initial assessment of the system's condition, identifying any obvious signs of failure or malfunction, such as leaks, blockages, or structural damage.

Camera assessments can be particularly useful for inspecting sections of the system that are not easily accessible, such as underground pipes. By using specialized cameras, inspectors can gather detailed visual information about the interior of the pipes, identifying issues such as clogs, cracks, or tree root intrusions that may not be visible from a surface inspection. This combination of visual and camera assessments provides a comprehensive understanding of the septic system's health and helps in making informed decisions about repairs or maintenance.

In contrast, other options listed do not encompass the recommended practices for thorough inspection. For instance, annual testing of groundwater, while important for monitoring potential contamination, does not provide a direct assessment of the system's structural integrity or operational status. Similarly, regular chemical analysis of the system may not accurately reveal physical damage or functional issues within the installation. Audio detection methods