Samples water from saturated and unsaturated soils. Easy installation and sample retrieval. Requires no maintenance. Ideal for nitrate monitoring. This range of 48mm diameter soil water samplers can be installed either above or below the water table. They are designed to collect soil water which can then be extracted from the device and taken to the laboratory for analysis. The sampler is installed into a hole made with a screw or bucket auger. A negative pressure of up to 85 centibars is applied to the tube using a hand pump. Water enters the sampler through the porous ceramic cup at the end of the sampler. Water samples can then be collected as required using a syringe. The rate of water accumulation depends on the soil type and moisture content. Nitrate leaching from fertilizer applications can be monitored simply and effectively using this method.
