A Guelph infiltrometer is a field device used to measure the saturated hydraulic conductivity (Ksat) and infiltration rate of soils directly in situ (in the field). It’s particularly useful for evaluating how water behaves in the root zone and near-surface soil layers.
Applications
- Assessing drainage capacity of soils
- Designing septic systems
- Evaluating agricultural fields for irrigation planning
- Planning stormwater infiltration systems
- Measuring effects of soil compaction
The Guelph infiltrometer uses a constant-head well method. Here’s how:
- A cylindrical well is augered into the soil to a specific depth.
- The infiltrometer is inserted into the well and sealed to prevent surface leakage.
- Water is added and maintained at a constant height (head).
- As water infiltrates, the device measures the steady-state flow rate.
- From this, Ksat is calculated using mathematical models based on Darcy’s Law and the geometry of the flow.
| Part Number | Description | Image |
|---|---|---|
| PR15 | Guelph Pressure Infiltrometer, Complete Kit |  |
| PR15B | Guelph Pressure Infiltrometer Kit, Less Reservoir |   |
| 2805K1 | PR15, O Ring Kit, for 2805d10 Pressure Infiltrometer |  |
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