What is a 'seepage pit' used for in septic systems?

A seepage pit plays a crucial role in the management of wastewater in septic systems by providing a deep pit designed to slowly release treated effluent into the soil. After wastewater from a home undergoes preliminary treatment in the septic tank, it is sent to the seepage pit, where the effluent can percolate through the surrounding soil. This process allows for natural filtration, where microorganisms in the soil further treat the effluent, breaking down contaminants and promoting the natural cleansing of the water before it enters the groundwater.

The design of a seepage pit is specifically intended for this gradual effluent release, making it a vital component of a septic system that helps maintain environmental health and prevent contamination of nearby water sources. This capacity to effectively manage and treat wastewater is what distinguishes seepage pits from other options like storing solids or collecting rainwater runoff.