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Old 09-08-2004, 05:41 PM   #1
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Calculation for flow loss (return 5' above sump)

Does someone have a link/formula for calculating gph loss relative to lift?

I have a gen-x 4100 (~1000gph) pump in my sump. From the floor of the sump to the return is roughly 5ft. 8O

I know I'm losing flow, but I don't know how much...

fwiw I plan on adding another diy HOB and a 2nd 4100 as soon as possible.

Thanks in advance.

Nate C
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Old 09-08-2004, 06:23 PM   #2
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Nevermind.... I found this info on the manufacturers website:

GX4100

Gen-X submersible pump

1085 GPH
9.2ft maximum lift
UL approved
Ceramic Shaft, adjustable flow
1 year guarantee against manufacturer defects.
PSI Rating 3.98
5/8" and 1" ID Hose fittings included.
750 gallons at 3' Head
650 gallons at 5' Head
Power Consumpion 70 Watts
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