Southern Water has had a record-breaking year for leak prevention.
Between April 2024 and April 2025, Southern Water reduced its weekly leakage by more than 15 per cent, from 108.1 million litres per day to 91.1 million litres per day.
This is a saving of 17 million litres each day, which is enough to serve 35,000 customers.
The company credits this success to new technology, including 24,000 acoustic sensors attached to its 15,500km water network.
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These sensors detect leaks and send information back to the control centre, which then dispatches one of the 90 leak-busting teams across the region to fix the problem.
Tim McMahon, managing director of water, said: "There’s been incredible work by our teams around the region – finding and fixing the leaks from big pipes far below the ground which show no trace on the street.
"Thanks to clever technology and new control systems, we are able to prevent pressure spikes which can burst water mains, and work as fast as possible to respond to every reported leak."
The company is also undertaking its biggest ever water mains replacement programme, with 50km of older PVC pipes to be replaced by the latest technology during 2025.
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