1. Automatic Allocation
2. Fixed Flow Percentage
3. Variable Flow Percentage and
4. Inflow-Outflow Curve
At an outfall where the invert of the outfall pipe is raised compared to the inverts of the incoming and outgoing pipes a flow split of Variable Flow Percentage or Inflow/Outflow curve may work better (Figure 2). Figure 1. Options for Performing a Flow Split in InfoSewer
Figure 2. The Effect of the flow split can be used to model complex situations in a dendritic model with outfalls.