12/5/2023 0 Comments Bubble up dredge![]() ![]() The goal is to use the eductor to pull a vacuum on the pump shell and cause water to enter and completely fill the pump shell. Seal the suction pipe by lowering it into the water.Ĭonnect the suction port of an eductor to a port in the top of the pump shell or in the discharge pipe if the pump is a top discharge model. The discharge line can be sealed using a flap valve or a pinch-to-prime device, filling it with water or by immersing a portion of it near the point where it leaves the dredge hull. Seal the discharge line at some point near the pump. We will discuss those later.įor now let us consider ways to purge the air in a hullpump or deckpump. Ideally, the best way to prime a dredge pump is to put it underwater a la a ladderpump so that it is flooded and even then there can be problems. Air is great stuff for breathing and flying but frustrating as all get out if it gets into or will not vacate your dredge pump shell. The rest of the rules of priming are the same. ![]()
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