Originally Posted by
BWG
I totally enjoyed the comparison between all three. The examples were purposely exaggerated to show what actually matters in a gravity flow pipe system is the actual elevation change in the water from point A to B. I'm trying to find the discharge coefficient of a pipe underwater and to see if the value can be converted to equivalent pipe length. Typically it is ignored.
Not much manual calculations go on for most commercial firms nowadays. They plug the plumbing system into a CAD package with flow calculation software.