Drain Gauge G3

Monitor Groundwater Leaching

Use the Drain Gauge to determine the volume of water and chemicals draining from the vadose zone into groundwater.

Identify Contamination

The one-and-a-half meter tall Drain Gauge is buried directly in the ground to measure flow rate in unsaturated soils and collect soil water samples for chemical analysis. Water samples can be collected easily through a surface port to analyze for chemicals, fertilizers, and other contaminants.

Measure Deep Percolation Accurately

One of the challenges with lysimeter measurements is that water tends to flow around receptacles buried in the ground. The drain gauge uses an ingenious duct and wick design to apply a constant tension and keep the flow rate within the drain gauge equivalent to the flow rate in the surrounding soil.

Made from Non-Reactive Materials

The Drain Gauge G3 is constructed from inert materials, so chemicals won't react with the tube, the sensors, or the collection reservoir.

See How to Install the New Drain Gauge G3

How to Install you Drain Gauge G3

Applications:

• Waste Landfill Sites. Used to identify drainage and monitor efficacy of cover systems.
• Food Processing Waste Sites. Maximizes applications by monitoring water drainage rates and water quality below the root zone.
• Environmental Research. Measures percolation and recharge rates.
• Farming Operations. Measures and informs irrigation during a cropping season.
• Golf Courses. Used to measure and control excess water applications and fertilizer loss.

Customize the Drain Gauge for Your Applications

The Drain Gauge G3 has two available materials for the divergence control tube:

• Stainless steel for collecting an undisturbed monolith
• PVC for collecting a repacked monolith 

The Drain Gauge G3 can be used with or without the electronic sensor.

• With the non-sensored option,  the user can make manual measurements of drainage.
• With the sensored option, flux rate, electrical conductivity, and temperature are constantly monitored.
• The sensor can easily be added to an already installed collection unit.

Benefits 

• Replace your sensor easily without having to dig up the entire drain gauge.
• Completely sealed system protects from high water tables
• Larger sampling volume allows for more accurate analysis.
• Integrated EC sensor allows you to monitor when solute fluxes occur.

Limits

• No overflow port so water must be sampled periodically
• Stainless Steel DCT not suitable for heavy metals

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