After making sculptures out of tube for several years, it occurred to me that I could pump water, etc. through the them. These images show the progression from a sculpture in Copper wire, to successively more complex prototypes in Copper and stainless steel tube, and finally some renderings of what half-size and full-size fountains might look like.
I tried 8 pumps before I found one with the right balance of head/pressure, and flow!
Reference material on dolphin musculature was not to be found on the web, so a hydrographer customer put me in touch with one of the world's preeminent dolphin anatomists, who shared literature, and consulted with me.
I learned that you can arrange pumps in series to achieve greater pressure (head), or you can arrange them in parallel to achieve greater flow.