The new IN15-W Turf-Tec SDRI Infiltration Rings have diameters of 5 foot and 12 foot rings that match ASTM Standard D 5093-02 which replaced old ASTM D 5093-90. These rings are for performing a Sealed Double Ring Infiltration Test or SDRI (S.D.R.I.).

The Turf-Tec Infiltration Rings are double ring for standard testing of soils with a hydraulic conductivity between 1X10-7 m/s to 1X10-10 m/s or tight soils with low infiltration rates.

They are constructed of durable aluminum outer ring and a durable steel inner ring.  The inner ring is a seam welded one piece tank to prevent leaks. The outer rings are constructed of rigid aluminum and bolted together with the aid of a rubber gasket to form a tight seal. The inner infiltration rings are also painted to prevent rust and ensure a long life.  The outer rings are made from aluminum and do not require painting.

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The Turf-Tec SDRI Infiltration Rings for ASTM Standard D 5093-02 test method is useful for field measurement of the infiltration rate of very slow infiltrating soils. This test method is useful for measuring liquid flow through soil moisture barriers such as compacted clay liner or covers used at waste disposal facilities, for canal and reservoir liners, for seepage blankets, lake and irrigation pond areas and for amended soil liners such as those used for retention ponds or storage tanks. It is also useful in determining if a spill occurs, how the soil around the area will react. This test method is government approved and matches ASTM Standards.

The purpose of the double ring is to ensure the downward flow of movement of water to insure proper measurements.  These infiltration rings are ideal for taking ASTM infiltration tests on all areas and match the ASTM 5093 test.

The IN15-W Infiltration Set comes with both inner and outer rings, rubber gasket for 12 X 12 foot Infiltration Rings, bolts for 12 X 12 foot Infiltration Rings, 3000 ml IV bag, rubber splash guard and all necessary hoses and fitting to conduct the complete ASTM Standard D 5093-02 test for the Sealed Double Ring Infiltration Test or SDRI.

The inner ring of the IN15-W Turf-Tec SDRI Infiltration Rings
have a diameters of 5' x 5' and a overall height of 11" at its highest point

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Digging trench for center 5' Turf-Tec SDRI Infiltration Ring installation

Installing the outer 12' SDRI Turf-Tec Infiltration Ring

Completed installation of  Turf-Tec SDRI Infiltration Rings and filling rings to begin testing

Check Infiltration on