I have noticed that in SewerCad (Auto-design) the program change the diameter to larger pipes despite the pipe does not reach to full? i.e. we give minimum and maximum slope in the design constrains; and I expect the program to use higher slop (within the given ranges); doing that will maintain the diameter, in other word I do not expect the program to do the engineering in one click but at least this is major issue because when I increased the slope manually little bit I could keep the same diameter, so why the program does not increase the slope till the d/Dfull=80% and after that should change to the bigger size at minimum slope and start the new iteration..!!!!
Regards......Mohamad