Surcharge Junctions

[Cartexeng]

This has to be a really simple solution, but I just cant see it.  On the attached model, I have a Jun-B2 and a 12" SD to a rain garden.  Jun-B2 is surcharged no matter what I change.  Pipe size doesnt matter; Surcharge elev can be 20-ft above invert and it still surcharges.  

Same thing is happening with Jun-A2.  

File extention should be SPF, but would not let me attach so changed extention to ".bmp".  Sorry for the inconvenience, but only way I know to get it posted.  

Thanks in advance. 

[annw2]

I don't know spf.  I tried double clicking the file and it won't open.  It says it is corrupted.

Have you checked your initial tail water condition?  At least on older versions, if you renumbered, it would set the tailwater to odd values or not update the tailwater values.  I always manually set every time I run.

[Cartexeng · Accepted solution]

I figured it out.  Effectively, tailwater was the problem.  I raised the invert elevations of the pipes flowing into the detention pond and the surcharge went away.  I ran the model using Kinematic link routing instead of hydrodynamic which accounts for backwater and everything worked.  So I knew the problem had to be HGL from the pond running up the pipe.  

Thanks for your response.  I appreciate the dialogue.  SPF is a file extension for Storm and Sanitary Sewer.  

[wfberry]

Just a reminder. The next time you may want to send in an .spf file, change the suffix to .txt. This works easier since when selecting a .bmp most computers will try to load a picture file.

Bill

[Cartexeng]

Good idea - will do.  Thanks for the reply.