Alchemy
yes, sloppy terminology on my part
most (dare I say all) WCing pumps are operating FAR below (to the left of) their peak efficiency
so any reduction in the system flow resistance will have the effect of increasing the flow rate
AND
shifting the pump's operating point to (the right to) a higher point on its efficiency curve
still a bit sloppy, but a little clearer
the issue is not the same, but the effect is
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