Thank you for all of the responses. Good to know I was on the right track, and just as importantly that I need to be very careful to consider priming, and even that it may be very problematic. Much appreciated. Luke
In this example, the static suction head for the pump at point D is -2m right? not -4m right?
I believe so on the basis that pumps don't suck, it is atmospheric pressure which pushes fluid into the pump, through the pipe (A to D), once the pump creates a low pressure at point D (high to low...
