Type:	SeriesSlot
Units:	FLOW
Description:	Flow rate at the entrance of the object.
I/O:	Can be input, output, or set by propagation across a link
Links:	Usually linked to the outflow slot on another object.
Type:	Series Slot
Units:	FLOW
Description:	Flow rate at the exit of the object.
I/O:	Can be input, output, or set by propagation across a link
Links:	Usually linked to the inflow on another object.