Every day leaky pipes mean that millions of litres of perfectly good water is wasted. However, one of the biggest challenges facing utility companies is finding those leaks in the first place because the leaks are often hidden somewhere in the the pipes under the ground.
The supplier 'Thames Water' is trialling a new method of detecting leaks. The firm has employed a sniffer dog with a very good nose for sniffing out when the pipes have sprung a leak.
Watch a report by Charlotte Briere-Edney
The trial is being run by Ross Stephenson, director of Canine Assisted Pest Eradication (CAPE), with his canine colleague Snipe, a three-year-old Sprocker spaniel.