Hmm good point. I just assumed the wattage rateing on the pump was average, not full load. Since things are generally rated conservatively, you are probably right.
Another thing, I don't really understand coils well, but how much can the workload of the impeller even be varied? I was under the impression that the impeller is riding the alternations in AC current. If so that would sugust that the same magnetic field is being induced regardless of the impeller. There must be some feedback from the magnet on the impeller, but would that be enough to significantly alter the current flow into the coil?
[ 09-16-2001: Message edited by: redleader ]
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