Theoretically, Dasani is a good idea. Take the water through a process that will render it absolutely safe, add a little minerals for taste and bottle it. Unfortunately, there's always a chance for the equipment, or an employee, to screw up. The testing has to be thorough and for the right things....no assumptions because it came from a public water supply.
But doing it right would drop the profits from 300,000% to 299,999% so that's not feasible.
