Which of the following actions can harm a septic system?

Flushing non-biodegradable materials can harm a septic system because these materials do not break down naturally in the tank. Septic systems rely on a balanced ecosystem of bacteria and enzymes to digest waste. When non-biodegradable items such as plastics, wipes, or certain hygiene products are introduced, they can disrupt this ecosystem, leading to clogs and backups. Over time, this can cause serious damage to the system, resulting in costly repairs or the need for a complete replacement.

In contrast, using water-efficient fixtures, regularly pumping the septic tank, and using biodegradable soaps are actions that support the proper functioning of a septic system. Water-efficient fixtures reduce the amount of water entering the system, which can help prevent overloading. Regularly pumping the septic tank removes built-up sludge and scum, maintaining an effective environment for the system’s bacteria. Biodegradable soaps are less likely to disrupt the natural bacterial processes within the septic system, ensuring waste is broken down efficiently.