seepage bed
A trench wider than 36 inches (914 mm), containing coarse aggregate and two or more distribution pipes through which the effluent from a septic tank may seep into the surrounding soil. Also called seepage bed. (Ching, 1995)
A trench wider than 36 inches (914 mm), containing coarse aggregate and two or more distribution pipes through which the effluent from a septic tank may seep into the surrounding soil. Also called seepage bed. (Ching, 1995)