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  1. D

    March/Chugger Pump Priming Port Location

    Actually basic physics, along with fluid dynamics, says it does work. Surface tension in the water allows it to form that air pocket in the inlet tube if there are restrictions for it to work against. With the restriction of a QD or hose barb, there is enough surface tension to resist the head...
  2. D

    March/Chugger Pump Priming Port Location

    A lot of priming issues have to do with the INLET hose or pipe size. If the air forms a bubble in the inlet supply line, and you have any restrictions in the line (valves, QDs, hose barbs, etc), it may not properly prime the pump even if you have sufficient height above the inlet and outlet...
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