The successful trial paved the way for an £8.7 million contract which began with the cleaning of a bitumen lined internal and external steel water main.

> Read more: NWL cleaning of 14.964km of 36" main

Northumbrian Water Limited (NWL) trial

Invited by NWL to take part in cleaning trials on two sections of 36” (935mm) trunk main, we were one of three contractors to take up the challenge and the only one to successfully complete the task.

> Read more: Northumbrian Water Limited trial