In a bid to help reduce the amount of water wasted by leaks, we have recently signed leak detection contracts worth £200 million, to help us find and fix leaks in our pipe network. With over 32,000km of pipes, many of which are Victorian, this is a big task. Our aim is to reduce leaks by 15% by 2025, but we’ll need our customers to help us reach this goal. You can track our progress against our plan each month.
A dripping tap or leaky pipe may not seem like a big deal or even a reason to contact us, but having lots of little leaks soon adds up, causing millions of litres of water to be wasted each month. Have you noticed a leak in your garden, or in the street, or spotted our engineers working in your area? No matter how big or small, we’re looking for feedback from our customers on how we’re handling leaks. Let us know your thoughts below.
If you have spotted a leak that needs reporting, please visit our report a leak page.
@MindTheGap in answer to your question. My understanding (from the TW web site) is that of the leaks fixed by TW "about half are hidden leaks - these are below the surface and aren't easy to find"
These therefore need to be detected. One method TW use is to listen to the noise that resonates from customer’s water meters or from TW’s control valves. The principle being that water escaping from a pipe creates a different noise to that made when water is just normally passing through pipes. However, customer consumption and certain types of equipment (eg air conditioning units) connected to a customer’s supply can also create spurious noises. The detection teams may have to revisit a 'noise' on several different occasions to validate it is a 'real' leak they have found and not a 'false' leak.
Hope this helps.