What is the purpose of a leach field in a septic system and how does it contribute to the overall functionality of the system?

The purpose of a leach field in a septic system is to disperse and treat the liquid waste (effluent) that flows out of the septic tank. The leach field allows the effluent to slowly percolate through the soil, where natural processes break down harmful bacteria and contaminants before they reach groundwater. This helps prevent pollution and protects the environment while ensuring the proper functioning of the septic system.