The RDII Inflow page of the Inflows Editor dialog form is used to specify RDII (Rainfall Dependent Infiltration/Inflow) for the node in question. The page contains the following two input fields:
| Field | Description |
| Unit Hydrograph Group | Enter (or select from the dropdown list) the name of the Unit Hydrograph group which applies to the node in question. The unit hydrographs in the group are used in combination with the group's assigned rain gage to develop a time series of RDII inflows per unit area over the period of the simulation. Leave this field blank to indicate that the node receives no RDII inflow. |
| Sewershed Area | Enter the area (in acres or hectares) of the sewershed which contributes RDII to the node in question. Note this area will typically be only a small, localized portion of the subcatchment area that contributes surface runoff to the node. |