Which of the following methods can enhance the longevity of a septic system?

Regularly scheduled maintenance and inspections are crucial for enhancing the longevity of a septic system. This proactive approach allows for the early detection of potential issues, such as clogs, leaks, or system failures, and enables timely repairs before they escalate into more significant problems. Routine maintenance often includes pumping the septic tank, checking for signs of wear and tear, evaluating the drain field, and ensuring that all components are functioning correctly. By keeping the system in optimal condition and adhering to maintenance schedules, homeowners can significantly extend the operational life of their septic systems, avoid costly repairs, and maintain a healthy environment.

The other methods listed do not support the longevity of the system. Adequately draining the system on demand does not address the overall condition and functioning of the system; rather, it focuses narrowly on immediate needs. Improper disposal of non-biodegradable items can lead to clogs and system breakdowns, drastically reducing the system's lifespan. Similarly, overloading the system with heavy traffic can cause physical damage and overburden the infrastructure, resulting in premature system failure.