Downstream Defender performance verification: fine sediment removal

To evaluate the ability of the Downstream Defender® to capture very fine grit and sediment, a full-scale 4-ft diameter unit was tested under controlled laboratory conditions. All test sediment was less than 75-micron in diameter, with an approximate mean particle size of 50-micron. Test data demonstrated 80% removal of very fine sediment for all flows up to 1.2 cfs. 

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