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MotoSook MotoSook is offline
Somewhere in the Midwest
 
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Join Date: Oct 2001
Location: In the barn!
Posts: 12,498
If I understand your diagram, you have blocked the return to tank outlet. That is your regulator dump/relief. The regulator (my guess), appears to be of a type that dumps what is not need (flow and pressure). It may be a backpressure type regulator, and you are not using it correctly causing a larger differential across your pump than it was designed for. As John stated above, you are stressing your pumps.
Old 01-26-2004, 03:57 PM
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