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Unread 07-22-2005, 04:36 PM   #10
Dave
Cooling Savant
 
Join Date: Oct 2004
Location: Canada
Posts: 260
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There is no change in RPM with AC pumps, they all turn 3600 rpm, so how do you get much of a change in head?

Sure you will get differently effect, but a variable rpm pump in series is much more effective.
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