This is how InfoSewer can use a time series of inflow at a specific node:
Figure 1. Load with a Pattern of Inflow will create a loading to the node based on your inflow time series.
3. The pattern has to have the same time steps as your default Run Manager Pattern option, normally this will be one hour
4. The factor column is your inflow in cfs, gpm, lps or mgd (Figure 2)
Figure 2. The Inflow Time Series Pattern is your Flow
Figure 3. Base Flow from the Inflow Time Series Pattern