Transient Monitoring Uncovers Major Unauthorised Water Use and Asset Risk For councils and utilities managing vast, ageing water networks, the silent threat of water hammer - or high-magnitude pressure transients - is a constant, insidious risk. These sudden, massive pressure surges drastically accelerate pipe failure, stress joints, and lead to costly, disruptive repairs. This case study demonstrates how a proactive, data-driven transient monitoring approach, utilising advan