If that is all it does, it is a damned expensive priming system. Numerous times I have heard operators tout pump priming as the jet’s greatest benefit. Go deeper, perhaps to 55 or 60 feet, and still maintain a production rate of Increase the operating vacuum to 20 to 22 inchesĪnd increase solids production to 350 tph from a depth of 35 feet. Add a jet system to that dredge and it will be able to maintain the same 250 tph from 35 feet with an operating Maintaining 20 to 22 inches of vacuum without a jet while producing solids at the rate ofĢ50 tph from a depth of 35 feet. Effective vacuum is the total amount of vacuum that can be utilized to raise solids up to the pump inlet port. Suction jet assist makes the equivalent of an extra 10 or 15 inches of effective vacuum available at the dredge pump inlet.
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