It often helps to add a break node to a long force main (especially if it joins the Gravity Main (GM) system at the end of the FM):
1. Add a Surcharge Node at the end of the Force Main (FM)
2. The FM will have a d/D of 1 most of the time and
3. There will not be an abrupt transition between the FM and GM system.
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| Plotting a Reference Graph in InfoSWMM makes it easy to see how the Pumps react to Wet Well Depths. |
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| FM to GM Transitions |
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| Break Node in FM's |
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