Quote:
Originally posted by unregistered
no no, I did not mean cavatitation was related in any way to audible noise
in fact it cannot be heard
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Cavitation
n. 1. The sudden formation and collapse of low-pressure bubbles in liquids by means of mechanical forces, such as those resulting from rotation of a marine propeller.
That does create audible noise when it happens. Or are you just talking about in the scale of a small pump?