Here's a bit of an explanation for your observation:

//www.curezone.org/forums/fm.asp?i=744619#i

and here's how to make your own [Pat's instructions] for free, (well just need a couple of batteries):

http://www.quantumbalancing.com/energized_water.htm

and here's a post that explains how it works...

//www.curezone.org/forums/fm.asp?i=875767#i

You can check into it all at the CZ energized water forum:

//www.curezone.org/forums/f.asp?f=218

There are posts there by Owen, Trapper and others that use other methods, some as simple as placing a nice big jar of water outside to be energized by nature...

Enjoy reading!

MadArt (ist)