It's now up on sharecg at:

http://www.sharecg.com/v/23278/poser/Firefighting-Nozzle-and-Hose

I've done three smart-propped hose streams: a fog stream, medium width stream, and a straight stream.  The water material is very, very crude and basic: you'll have to find someone who knows the material room or texturing who is much better than I (not a hard bar to jump).

It's not perfect by any means (or not even all that accurate), but should work for everything except extreme closeups.  I''ve submitted it to Freestuff here as well, but that usually takes a day or two to show up.