Well in the manga, Naruto was just starting his training now so really he didn't create the waterfall more than a few hours ago. This Akatsuki stuff was supposed to have happened while Kakashi was still in the hospital which is one of the things that made Naruto's training so important because they were already coming for him. There is also another important scene that they skipped that I'm interested to see where they are going to try and fit it in. They just completely messed up the timeline.
Maybe there was one underground, or he just tapped into the water table or something. I don't think Yamato is strong enough to create his own water source.Originally Posted by KrayZ33
*looks at KrayZ's avatar*
Oh you bitch.