RAKR Competitive Advantage: Rainmaker water costs as little as 0.5 cents per liter. That's up to 50% less than the competitions technology. Other competitive advantages of RAKR technology includes lower operating technology than conventional distillation (no need to boil), renewable energy sources, lower hydrostatic operating pressure than conventional method, more water production of by volume of water input, no brine water disposal needed, etc. The list is actually quite extensive.