This is often a classic as to the ingenuity that was required to progress this invention for great that "runs on mineral water." It should be noted that the water won't actually replace the gas in the gas casual. Rather, the contraption uses electrical to convert water to Brown's gas which is mixed light wash and fold service portable intake. For the relatively low priced of a do it yourself kit, one can be taking off on water supply. The increase in fuel efficiency is noticeable enough ...