I’ve studied and studied and studied the practice vignettes for Section E provided by ASLA, older vignettes that we bought several years ago, vignettes that I got from study sessions other people attended, etc.
The older vignettes actually require some pipe sizing, Manning nomograph charting, rational method calculations, etc. ( the new ones don’t!!!??? Isn’t that odd?) My water runs downhill, my contours are no closer than required. Am I missing anything? Any last minute advice?