Which of the following can lead to septic system failure?

Flushing non-biodegradable items can significantly contribute to septic system failure. When non-biodegradable materials such as plastics, feminine hygiene products, or paper towels are flushed down the toilet, they do not break down in the septic tank. Instead, they can accumulate and create obstructions in the tank and leach field, leading to backups and malfunctions in the system.

Moreover, the presence of these materials can interfere with the natural bacterial processes that are essential for breaking down organic waste, further exacerbating the potential for a system failure. Unlike biodegradable waste, which is designed to decompose, non-biodegradable items can disrupt the functioning of the septic system, leading to costly repairs and environmental issues.

Regular pumping and maintenance, proper water waste management, and the use of eco-friendly products promote the health of a septic system and help prevent failure, making them beneficial practices that do not contribute to systemic issues.