You can run pumps in series. If they're the same model, then you're essentially adding pressure at the same flow rate.
But why not just start out with a pump that has the characteristics you're looking for?
Quote:
Originally Posted by LHG
Swiftech think the Apogee works very well....
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But does anyone else? From the pictures it appears to be a 5000/5002 sink (diamond pins in diagonal array) with different top and hold-down.
I realize that just a minor change in pin dimension, alignment to flow, and deck height can make a big difference - so what did they do? And is it really that much better than, say, the 6000? It's touted as having less flow resistance, but that could just be a higher deck height (like the resistance difference between the 5002 and 5000). Just wondering aloud...