The vertical blades in a Hydrothane Trashrack are styled after U.S. Navy torpedo designs with rounded leading and trailing edges.  This proven aerodynamic design reduces resistance to flow in the front and rear of the rack.  The smooth blade surface cuts frictional resistance across the blades.  This results in a significant improvement in flow efficiency through the rack itself.  Tests and field results have shown the Hydrothane design to cut headloss in half with trashrack bar spacing of 3" (76 mm) or less.  This also results in a more fish friendly trashrack. Click here to view a pdf file of flow tests conducted on Hydrothane trashracks.

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