Grist: As if California didnt already have enough water issues to worry about right now, last week Los Angeles lost more than 20 million gallons a days worth for at least 100,000 people when a pipe that was installed a century ago finally broke. But it turns out geriatric pipes arent just a problem for the City of Angels. Aging infrastructure means that nationwide, pipes hemorrhage seven billion gallons of treated drinking water each day; enough to meet the daily water needs of the entire state of...