What can cause a septic system to fail?

Excessive water usage can overwhelm a septic system, leading to potential failure. When a household exceeds the designed capacity of its septic system, it can cause the tank to fill up quickly, not allowing adequate time for the solids to settle and the effluent to be treated properly. This excessive influx of water can lead to over-saturation of the drain field, which in turn can prevent the effluent from being absorbed into the soil. This disrupts the natural filtration and treatment process that a septic system relies on, which can result in backups, surface leaks, and ultimately, system failure.

In contrast, regular pumping of the septic tank is a maintenance practice that helps to remove the buildup of solids, ensuring that the system functions efficiently. Proper waste disposal is crucial as well, as it prevents introducing harmful substances or materials that could damage the system. While continued use of toilet paper is generally manageable, excessive quantities or inappropriate types of materials can contribute to clogs and issues, but they are typically not as critical as the impact of excessive water usage. Therefore, managing water intake is vital to maintain the functionality and longevity of a septic system.