Foul network analysis

Water authorities are asking for a foul water network analysis to confirm the velocities, pipe diameters and flows. Flow cannot provide this information because the foul network has not outlet and it gets flooded. Your response is to add an hydrograph to each node in a surface water network, but for big developments, that way is a very big time / money consuming.

Besides, if we import a foul network created in a different software, to get the values of the velocity we should select "design + capacity cover" and this tool modifies all junctions, creating a 1200mm manhole and updating invert levels.

It would be good to have the possibility of do a foul network analysis, because an authority has confirmed that they receive this information created by other softwares.

Thanks