What Type of Septic System Do I Have?: Dry Well Septic
- Wastewater flows from the home or business into a dry well septic tank.
- Solids settle on the bottom of the tank, while less dense materials, such as grease, oils and soap, float to the top.
- The liquid in the middle of the tank (“wastewater”) flows under baffles that prevent soap and grease from entering the septic drywell.
- The wastewater flows via a pipe into the drywell, usually a tall concrete cylinder that has holes in the sides and an open bottom, covered in soil.
- The wastewater then seeps out into the surrounding soil, which filters the effluent.
According to inspectapedia, “a drywell or seepage pit, also called a leaching pit or leaching pool, is a covered pit with an open-jointed or perforated lining through which septic tank effluent seeps into the surrounding soil. It is one of the oldest and simplest methods of disposing of gray water or in some cases septic effluent; a simple pit or hole in the ground, open to soil at its sides and bottoms, intended to receive and dispose of gray water (water from building non-sewage drains such as laundry, showers, sinks).”