Neenah spout flow diagram
For flows under .75 GPM the water stream is essentially vertical
Between 0 and 1.5 GPM the water stream in a laminar chain. At 1.5 GPM the stream begins to break apart. Beyond 2 GPM the flow becomes active. The top of the water stream hits the bottom edge of the outlet opening adhering to it and causing the stream to wander and move.
Spout was plumbed with ¾ in pipe using the supplied bushing.