Inspired by recent events, I hope to clear up the continual confusion around net positive suction head (NPSH), specifically as it pertains to self-priming pumps on a lift application.

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Resonance is never an easy problem to deal with—in particular, structural resonance. It’s like a sleeping giant that you never want to awaken.

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Last month, Jim Elsey discussed pump performance and reliability issues that occur when operating the pump away from the preferred operating region (POR).