What type of drainfield uses a combination of soil and constructed elements?

The leaching chamber drainfield relies on a system that combines natural soil properties with engineered components designed to facilitate the treatment and absorption of effluent. In this type of system, leaching chambers are used to create void spaces that allow for increased aeration and water infiltration while relying on the natural soil for further treatment.

These chambers are usually made from durable plastic and are designed to replace traditional gravel or stone aggregate, making the system more efficient in terms of space utilization and reducing environmental impact. Since they provide a larger surface area for effluent distribution and improve the flow of water through the soil, they also promote better aerobic treatment conditions.

This approach contrasts with conventional drainfields, which typically use gravel or stone as the medium for effluent dispersal without the tailored features of constructed chambers. While pumped effluent and gravel-less pipe drainfields involve specific designs, they do not inherently integrate soil with constructed elements to the same extent as leaching chambers do.