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Underground Storage Units

I am currently attempting to model in SWMM Stormtech chambers as a subsurface pond/storage unit connected to a surface pond with a higher stage. How do I cap off the underground system so water will not pond higher than the top of my chambers?…

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1 Reply · Reply by Robert Dickinson Oct 25, 2017

Rainfall data file for rain gage

I want to use 3-hour rainfall data from 12-01-2002 to  05-31-2010 for my rain gage, but every time I ran the model, it always appears error 321 no data in rainfall interface file for gage or error 319 invalid format for rainfall interface file.…

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14 Replies · Reply by mohd Oct 19, 2017