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Excessive Continuity Errors in node (SWMM5)

Hi, I am trying to model an infiltration pond in SWMM and get excessive (90%+) continuity errors for the pond node.  The overall flow routing continuity error is zero for the site.  The pond is set up to have a high flow bypass for a continuous model such that the majority of the analyzed storm events infiltrate and never pond to the bypass.  Has anybody run into an issue like this before?  

Thank.

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Replies

  • Hello Kenneth,

    Is surface ponding being used for the storage node?  If your overall CE is fine maybe the pond loss is not being accounted for in the node continuity check. I would check the Summary Storage Table to see if the columns make sense to you - add up infil, evap, outflow, inflow etc.

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