hmmm
Thanks for your answer but it would be more logical if the labels Hw and Hc were exchanged!? Is my new picture correct?
lphttp://files.engineering.com/getfile.aspx?folder=970f4ad7-df35-4751-8f5a-d6302d33d344&file=weir.jpg
I am making the sewage network. At the moment I am at canal structures - weirs and theis properties. I am not sure what "vertical height of weir opening" should be ? Is this distance between water level and weir crest? Is this height of weir crest from bottom of canal? Or this is vertical height...