Our on-call emergency turnkey solutions teams were dispatched to complete a 42″ mains repair which was serving a regional reservoir. The site was on a public bridleway in a forest. It was clear this was a major water leak. We worked to stabilise the main and prevent catastrophic failure. Our personnel deployed large diameter pumps in conjunction with additional lighting so that works could continue throughout the night. We exposed a 42” main with a significant rupture in excess of 2m.