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Old 05-18-2015, 06:39 AM   #70
ranger42c's Avatar
City: Maryland
Country: USA
Vessel Model: 42' Sportfish
Join Date: Aug 2013
Posts: 4,004
Originally Posted by Britannia View Post
Yes - but with a hose that's twice the diameter it only has to move the water at a quarter of the speed - so the same power pump will work as for the narrower hose where the water has to move faster. The only thing that matters is the hydrostatic pressure at the pump (ignoring friction). That's determined by how far below the waterline it is.


Hmmm.... digesting...

South River, Chesapeake Bay
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