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A decent pump with an 18' head?
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11-17-2003, 06:13 PM
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bigben2k
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Using Hazen-Williams (Darcy would be more accurate), I calculate 1 foot of head loss through 36' of true 1/2" ID tubing, at 1 gpm (60 gph).
It climbs up to 2' 2", at 1.5 gpm (90 gph).
(friction factor: 150)
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