John Bess of Baltimore has spent the past two weeks walking around San Francisco with his headphones and Orioles cap on. He’s logged nearly 10 miles a day, past such sites as the Embarcadero, Telegraph Hill and AT&T Park.
But Bess is no tourist. He’s searching for water leaks in the city’s underground pipelines with a special microphone and earpiece that enables him to hear escaping water from the street — rather than having to dig down and find it.
Read the full story here: http://www.sfgate.com/bayarea/article/California-drought-S-F-seeks-tech-fix-to-leaky-6165494.php