How can water pressure be measured in "m" Hi I need to understand how minimum residual pressure can be measured in meters. At least I think its meters. The specific sentence in the abstract is: "The South African civil engineering fraternity has grown to accept 24 m as the design criterion for minimum residual pressure in water distribution systems. However, the theoretical peak demand in many systems has increased beyond the point where minimum residual pressure exceeds 24 m – at least according to hydraulic models." A copy of this paper can be found at http://www.scielo.org.za/scielo.php?pid=S1816-79502009000200007&script=sci_arttext I am developing material to help the South African waterworks department teach its staff along the lines of South African unit standard 254073, and while I am a skilled materials developer, I do not have a background in fluid dynamics. (It's South Africa) Any help would be much appreciated.