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I got my EWP order in Wednesday, and got set up for some tests today.
Mainly, I wanted to get some first hand info on the flow and pressure I
can expect. The pumps are rated at 20 GPM, and I found one reference
that put the current rating at 5 Amps. Both numbers are optimistic as
you can see from the attached chart. I will say the pumps are well
balanced. If you run them head to head, the output is a dribble.
(Don't ask why I did THAT test.) I don't see what condition could
possibly give me a 20 GPM flow from this pump.
All of these tests were done pumping water from a large container into a
5 gallon bucket using a 3 foot 3/4 inch ID hose on the input and output.
The pump input was below the water level in the large container, and the
output was mostly above the water level in the 5 gal bucket. Time was
measured with a stop watch. No precision measurements, but it should be
in the infield.
Bob White
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http://www.bob-white.com
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