What is the main purpose of the drain field in a septic system?

The main purpose of the drain field in a septic system is to disperse liquid wastewater into the soil. Once the wastewater has been treated in the septic tank, it flows into the drain field, where it is distributed through a network of perforated pipes. This allows the liquid to seep into the surrounding soil, where natural processes help to further filter and purify the water before it reaches the groundwater.

This key function is vital for preventing the accumulation of liquid waste at the surface, thus reducing the risk of contamination and providing a method for the effective treatment and disposal of wastewater. The soil plays an essential role in breaking down organic matter and removing harmful pathogens, making the drain field a critical component for maintaining environmental health and ensuring safe wastewater management.