A device for 1) measuring percolation and leaching losses from a column of soil under controlled conditions, or 2) for measuring gains (precipitation, irrigation, and condensation) and losses (evapotranspiration) by a column of soil. Many kinds of lysimeters exist: weighing lysimeters record the weight changes of a block of soil; non-weighing lysimeters enclose a block of soil so that losses or gains in the soil must occur through the surface suction lysimeters are devises for removing water and dissolved chemicals from locations within the soil.