Ceramic Cup Lysimeter

Excellent for vadose zone monitoring, the ceramic cup lysimeter is a soil pore water collection device, designed for permanent installation beneath the ground surface. The lysimeter is a two line system, designed to be used with a pressure vacuum pump. The vacuum is pulled and the vadose water flows into the ceramic cup. The pressure line is then used to push the sample to the surface. The ceramic cup features pore size of 0.446 micrometers.

The Shallow Lysimeter is designed for installation down to 20 feet, while the Deep Sampling Lysimeter is designed for installations down to 300 ft. Both Lysimeters use the same pressure/vacuum principle, however the deep sampling lysimeter has a ball check valve that protects the porous chamber from the higher pressures required to retrieve the samples from greater depths. For very deep installations, a compressor may be necessary to provide sufficient pressure. A second ball check valve is installed in the sample line.