Definitions for "Absorption Field"
A leeching or seeping field engineered to receive septic tank effluent.
A field engineered to receive septic tank effluent. Also called a leeching or seeping field, an absorption field consists of a series of shallow trenches - parallel, round, or whatever the land allows - 18" to 24" wide, in which drain tiles (pieces of perforated pipe) are placed. If the permeability of the soil, established by a percolation test is exceptional, then the pipes can be laid directly on it. In most cases the trenches must be lined with a 6" layer of gravel to help the effluent absorb properly into the soil.