User blog comment:Flamesword300/kenpachi's shikai/@comment-1706259-20091224034910

That is all speculation really; if you watch the clip; it shows blue reiatsu being released and when it fall it completely disperses (normally water wouldn't just evaporate into thin air in less than 2 seconds). (I just watched the clip again less than 1 minute ago so I know what I am talking about)