Leaching field

Leaching field

A system of underground tile or pipes arranged in trenches filled with gravel on the downhill side of a septic tank. The waste is discharged into the tile bed and seeps into the soil along the lengths of the feeders.

absorption field, disposal field

absorption field composed of absorption trenches Extent of coarse aggregate indicated by shaded area A system of trenches containing coarse aggregate and distribution pipes through which septic-tank effluent may seep into the surrounding soil.