Does one recite a different beracha when immersing ones hand in a natural body of water directly? I vaguely remember that there is a beracha of "על טבילת ידים" although I'm unsure.
Inspired by this question but I believe different because its not related to drinking. Can you use carbonated, and even flavored clear water (seltzer) to do things that require water such as washing ...
According to the Gemara in Hullin on 107a, if there's a vessel with a hole in it, and there's a "stream" (more than a drip but not necessarily the "sheffoferet hannod" required for a real mikveh) ...