http://www.bbcweb3hytmzhn5d532owbu6oqadra5z3ar726vq5kgwwn6aucdccrad.onion/news/science-environment-64052740
"This one wasn't visible - we detected it through monitoring flow in our network," said Colin Day from Essex and Suffolk Water. "We've covered the biggest leaks - burst pipes that people see. It's these smaller, hidden leaks that we need to find." Essex and Suffolk Water is testing "non-dig" repairs, including sealants that can be safely injected into pipes to repair cracks before they develop into a major leak.