Lysimeter G3

The only accurate way to understand the amount of nutrients or chemicals leaching into the groundwater is to directly measure deep drainage. Large, controlled-tension weighing lysimeters are the most accurate way to make this measurement, but power and funding requirements plus the complexity may mean you need another option. If you want to characterize variability but don't have funding for a collection of large lysimeters, the Drain Gauge G3 has you covered. The Drain Gauge G3 allows you to deploy multiple units to cover a large area at an affordable cost. It's an incredibly easy-to-use lysimeter that provides dependable monitoring of leaching, drainage, and recharge without the complexity of larger systems. This means you can instrument entire agricultural fields to better quantify variability. The G3 was deliberately engineered to be installed below the plow layer, so growers can perform normal operations directly over the instrument, which eliminates problems like edge effects. Plus, the Drain Gauge G3 can be combined with METER soil moisture sensors and precipitation gauges to estimate the total water balance more accurately than methods which only guess at deep drainage as a residual. The Drain Gauge G3 is a passive-capillary lysimeter that determines the volume of water and chemicals draining from the root zone into groundwater. Once installed below the root zone, water samples are easily collected through the surface port for analysis of chemicals, fertilizers, and other contaminants.