This is a video from Discovery UK's 'Richard Hammond's Big!' television program of Richard visiting the Kölnbrein hydroelectric dam in Austria to witness its release valve being opened to spew some 20,000 liters per second. Now that -- that is is a serious stream, and I can confidently say with at least 85% certainty I have only peed that hard four times in my entire life.
Keep going for the whole video, which also features a gigantic pipe that could almost rival yours. ALMOST. *winks* You owe me one.
Thanks to Linby, who agrees a real host would have stood in front of it. Also, that's the sort of shower pressure I dream of.