I think arivaldo meant to say "random". I've heard this before but I can't remember where or what the reasoning was. You make a valid point, Butcher. Perhaps the "random" spin has to do with the way the impeller is mounted (just a random guess). Maybe at some stage the AC current in Iwakis gets transformed into DC? Such circuitry would be quite simple (a diode and some caps).
Phextwin: thanks for the reply. I just looked at my MCP350 and see that the inlet tapers itself all the way to the center of the pump. That was careless for me to miss something so obvious.
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