Tiny Oona spout flow diagram
At .15 GPM the flow is a very nice water chain. It's thin and delicate and succeptible to move with wind. Holds together well.
Between .22 and .4 GPM the stream is larger and fairly smooth. The water chain effect is still apparent at top of stream. Holds together well.
.75 GPM is the upper limit of what the spout can comfortably handle.
Spout was plumbed with ¼ in pipe for all tests.