AGGOTTAMENTO LIBERO – ASPIRAZIONE DIRETTA
Free draining is the simplest and most intuitive way to remove surface groundwater. It allows you to move large quantities of liquid in a short time, leaving the surface of the excavation dry. It consists in the direct suction of water through pumps until the desired altitude is reached. The type of soil is irrelevant for the suction. However, you must always pay attention to the permeability coefficients of the soil.
