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Double Ring Infiltrometer Test
Heavy-Duty Infiltration Rings – 6 in & 12 in
The Double Ring Infiltrometer Test is a reliable field tool used to measure soil infiltration rates with quick, accurate results in hard, compacted, or rocky soils. This rugged set of heavy-duty infiltration rings is widely used by engineers, environmental professionals, and students alongside other soil testing equipment for field-based soil permeability and hydraulic conductivity studies.
Product Overview
The Heavy-Duty Double Ring Infiltrometer set includes:
- 6 in inner ring
- 12 in outer ring
- 4 in height
For testing, both rings are inserted approximately 2 inches into the soil and filled with water. By measuring the decline in water level in the inner ring over time, infiltration rates are calculated. The outer ring limits lateral water movement, improving vertical flow accuracy and ensuring reliable results.
Heavy-Duty Construction
These infiltration rings are built for repeated field use:
- Constructed from 16-gauge galvanized steel for durability
- Rust-resistant for long service life
- Designed specifically for hard or rocky soils
- Beveled edges for easier soil penetration
- Welded ring alignment
- Rubber-grip handle for simplified installation
This rugged build makes the Double Ring Infiltrometer ideal for use with geotechnical and environmental field instruments.
Why Proper Installation Matters
Correct installation is essential for accurate test results:
- Rings must be level and evenly inserted
- Penetration depth must be consistent across both rings
- Rings must stay centered during setup
Optional tools like centering pins, splash guards, and support stands from the Field Set for Infiltrometers can help improve setup consistency and repeatability.
How the Double Ring Infiltrometer Works
- Insert both rings into the soil
- Fill the inner and outer rings with water
- Maintain a constant water level
- Measure the drop in water level in the inner ring
- Calculate infiltration rate over time
Because the outer ring restricts lateral flow, this method ensures more accurate vertical infiltration measurement. The technique aligns with ASTMD3385 standards, a widely recognized Standard Test Method for Infiltration Rate of Soil.
Get Results Fast
Key advantages of this infiltration system:
- Results often available in as little as 15 minutes*
- Ideal for time-sensitive field work
- Requires minimal water
- Easy one-person operation
*Note: Short tests may not account for full soil saturation. For more detailed soil moisture data, moisture sensors may be used in conjunction with infiltration rings.
Typical Applications
These infiltration rings are widely used to test:
- Golf greens, tees, and fairways
- Sports fields and playgrounds
- Lawns and landscaped turf
- Wetlands and drainage fields
- Septic system suitability
- New construction grading
- Farm and forestry sites
They play a key role in irrigation planning, drainage design, and soil permeability studies.
Factors Affecting Test Results
Several field conditions can influence infiltration outcomes:
- Soil type and structure
- Clay or silt content
- Initial moisture level
- Temperature
- Chemical soil composition
Documenting site conditions during testing is vital for reliable data interpretation.
Specifications
- Inner Ring: 6 in (15.24 cm)
- Outer Ring: 12 in (30.48 cm)
- Height: 4 in (10.16 cm)
- Material: 16-gauge galvanized steel
- Weight: 7 lbs (3.2 kg)
- Design: Double ring, welded construction
- Turf Impact: No permanent damage
Compatible with other soil permeability testing tools, this kit offers a rugged and reliable solution for fast, accurate soil infiltration testing.
The Heavy-Duty Double Ring Infiltrometer (6 in & 12 in) is a durable, easy-to-use tool that delivers trustworthy infiltration data in the field, making it an excellent choice for field engineers, environmental consultants, and soil science students alike.