Where do you define the junction (Manhole) area

[Wassim Haroun]

I cant find this, its described in the help, but I cant find it, and the dialogue box in the help file does not show it either. I am using the metric system, if that is an issue.
Anyway, what I need to do is specify the average manhole that we use here, which is 1.2 m diameter, but we also use the 1.8 meter manhole as often.

[Chris Maeder]

It is described in the Online Help System and User Manual, but there is a lot of material there and could be easily missed.

Select Analysis | Analysis Options. In the Analysis Options dialog, there is an entry called "Junction Surface Area". This is the surface area used at junction nodes when computing changes in water depth. If 0 is entered (or left blank), then the default value of 12.566 ft² (1.167 m²) is used (the area of a 4 ft diameter manhole). The value entered should be in square feet for US units or square meters for SI metric units.

[Wassim Haroun]

IN the analysis options, I have minimum surface area, is that the one, as I definately dont see Junction Surface Area.

[Chris Maeder]

There is a new version of StormNET. You have an older release. You can download the latest release by selecting Help | Check for Update, or go to our website and download the latest release and install on top of you current version.

[StormCat]

I'm kind of jumping in on this post a bit late, but I was wondering what you do if you have different size manholes in your network.