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Storage Nodes in a Small Catchment Area

Hi everyone! I'm currently new to SWMM (real beginner) and I would just like to ask for some help from you.

I'm trying to model LID facilities using SWMM. I wanted to compare our observed data from our manual monitoring and the simulation data from SWMM. I'm using storage nodes to represent LID facilities in my model. However, I can't seem to find how to delay the runoff or even lessen (store) the amount of runoff in the storage node. In other words, the flow in my junctions and outfalls are the same. (in between the junction and outfall is a storage node). I tried to change the properties of the storage node but still.. I don't know what could be the problem. 

I attached my model and the corresponding rainfall data with this post. Thank you so much!


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