Using RDII or RTK or I&I Hydrographs in #INFOSEWER – InfoSewer
from Innovyze also has the features to model Infiltration/Inflow from Rainfall
Events into a Sanitary or Combined Sewershed. There are three parameters,
R, T and K, a Sewershed Area and a fraction division that divides up the
overall R to the three individual R’s
1UH has an overall R (percent of Rainfall that
turns into Rainfall Dependent Infiltration Inflow)
a. R1
= Percent R1 * R / 100
b. R2
= Percent R2 * R / 100
c. R3
= R – R1 – R2
2Figure 1 shows the Rainfall for InfoSewer
3Figure 2 shows the result of using 100 Percent
R1, R2 or R3 at a node
4T is in hour and T*K is the Time Base of the
resulting UH
 |
| Figure 1 - Rainfall for RTK in InfoSewer |
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| Figure 2 - Resultant UH for Nodes with only R1, R2 or R3. |
