This attempts to cover some of the special things about fluid GunnShow drawings to watch out for.

These are things that you must satisfy in order for a drawing to export:

• At least one Ground symbol is always required on a drawing. This is probably a bug, but it turns out that you’ll always need one for a fluid network to do anything useful anyway. This is because capacitor-like links require you to attach to Ground, and a fluid network without any capacitance is a fluid network without any fluid mass in it, which isn’t very interesting.

• You must have exactly 1 internal fluid config object on the drawing. This is required to define which individual fluid constituents exist in this network. We recommend calling it netInternalFluidConfig. You may have zero or more external fluid config objects — these are optional.

• You must have at least 1 non-Ground node.