The Ksat constant head permeameter is an instrument that provides the means to collect data for determining in situ saturated hydraulic conductivity of the vadose (unsaturated) zone easily and conveniently. The measuring procedure is known as constant head well permeameter technique, shallow well pump-in method or bore hole infiltration test. Before the equipment is used a hole is augered (the bottom of the hole must be plane (use the Riverside auger). The main unit is used for measuring hydraulic conductivity to a depth of 2 m. The depth of measurement can be easily increased to 4 m by attaching a set of constant head tubes to the main unit. To measure below 4 m depths, a special flow measuring reservoir and a pressure transducer (available as optionals) are required.

Applications
· In situ permeability tests for drainage and/or irrigation
· Determination of hydraulic conductivity of the unsaturated zone for septic system design, landfill design, and retention pond
  construction.