Alright, good.

Nice reply...pretty much covered everything I was going to point out to you in one sweep.
I'll explain to you the significance of Canon Jutsus in a moment.
But let us move on.
I suppose you've taken basic science before...
You do remember how the form of water, Gas, works? There are molecules that bounce off of one another, the natural state of Gas.
Let's have this same concept apply to this jutsu. Work up Suiton chakra in your body, then release it in a "spreaded manner" throughout the air. Add enough Suiton chakra to make the water become dense and turn into a mist surrounding us.