A drain field, also known as a leach field, is a crucial part of a septic system. It is designed to treat and disperse wastewater from your home. After the wastewater is filtered through a septic tank, the liquid effluent flows into the drain field, where it seeps into the ground. This process helps to naturally purify the water before it reaches the groundwater. The drain field consists of a series of trenches filled with gravel and perforated pipes. These pipes allow the effluent to spread out evenly, promoting absorption by the soil. Proper maintenance of the drain field is essential to prevent clogs and ensure effective wastewater treatment, protecting both the environment and public health.