subsea Posted February 14, 2009 Share Posted February 14, 2009 Four Penductors with 3/8" orfice and 3/4" male NPT thread at $7.50 each. If the drain back to your sump requires reducing the output of your return pump, this may be your solution. The reduced orfice size of eductor reduces flow through pump but increases flow in tank. The eductor increases back pressure to the pump and reduces wattage consumption of the pump. Try it, you may like it. Pat Link to comment Share on other sites More sharing options...
subsea Posted February 18, 2009 Author Share Posted February 18, 2009 bump Link to comment Share on other sites More sharing options...
mikedelgado Posted February 20, 2009 Share Posted February 20, 2009 i might want to try one or two of those Link to comment Share on other sites More sharing options...
subsea Posted February 20, 2009 Author Share Posted February 20, 2009 Depending on the pressure output of pump at the eductor, the circulation rate will be 5 - 10 times greater than the flow through the pump. Many industries use eductors for mixing fluid in large tanks. If they do not work for you, then return them and I will refund the money to you. The orfice diameter is 3/8". If the pipe inside diameter is 3/4", then it would be able to supply four 3/8" diameter openings without a pressure drop. My experience is to use three or two. It is better to have more pressure at the orfice to achieve higher mixing rates. I have two eductors in a 75 gallon tank and it is enough. The eductors are bulky to hide and for that reason fewer or better. Regards, Pat Link to comment Share on other sites More sharing options...
subsea Posted February 22, 2009 Author Share Posted February 22, 2009 bump Link to comment Share on other sites More sharing options...
subsea Posted March 1, 2009 Author Share Posted March 1, 2009 bump Link to comment Share on other sites More sharing options...
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