Yeah, you might want to first research the average exit velocity of urine from the human urinary tract, or better yet, directly measure yours first... I doubt it's up to the task, but this is exactly why we always test first.
There were studies done in Liechtenstein just post WW2, but prior to Chuck Yeager breaking the speed of sound in 1947. Studies showed that some individuals did in fact possess the internal urinary tract pressure of several hundred kPa. Enough to create a rather power stream.*
*yes, this post is better suited for The Onion or April 1st.
