Double Ring Infiltrometer equipment allows in-place determinations of the rate of infiltration of water in fine-grained surface soils. Used primarily for geotechnical and environmental studies, this unit meets ASTM D3385 requirements and delivers accurate data. Usage includes such studies as irrigation and drainage requirements, reservoir leakage, water spreading and recharge, and other applications.
The infiltrometer is a simple instrument consisting of two rings. The outer ring and inner ring are used to penetrate the soil concentrically and are then filled with water. Water level is maintained by special Mariotte Tubes (3,000 and 10,000mL capacity), which are included. They can also be purchased separately as additional or replacement items. The infiltration rate can be calculated from the amount of water flowing into the inner ring.
The two galvanized steel rings are 12 and 24in (305 and 610mm) diameter and 20in (508mm) high. For long service life, the rings have a double-thickness reinforced top edge. The rings are driven into the soil using the special 0.5in (12.7mm) thick aluminum driving cap with centering pins. The hard-alloy aluminum cap also serves as a cover. The 3,000mL and 10,000mL graduated Mariotte Tubes with support stands provide a constant head of water for the test.
- Meets requirements of ASTM D3385
- Proven method for reliable field test results
- Rugged galvanized steel and heavy aluminum construction stands up to harsh field conditions
- Double-Ring Infiltrometer
- 12 and 24in (305 and 610mm) galvanized steel rings with fittings
- Aluminum driving cap / cover
- 3,000 and 10,000mL Mariotte Tubes with base
- Two neoprene splash pads
- 3/8in ID clear vinyl tubing (30ft)
- Mariotte Tubes provide a constant head of water for determining infiltration rate of soils. Additional or replacement Mariotte Tubes are available