HUDDERSFIELD primary school pupils went on a tour of Yorkshire Water's treatment works at Sheffield.
Twenty-eight youngsters from St Joseph's Catholic Primary School in Dalton were given a high-tech Baddies In The Works tour of the company's Ewden-based education centre.
The pupils, aged nine and 10, were shown how the treatment works bring water to the taps in 4.7m homes in Yorkshire.
As well as listening to a guide, they were given information via state-of- the-art headsets as they walked around the works.
Yorkshire Water community affairs manager Anne Reed said: "We have been running our education centres for over two years and the response has been fantastic."
Any primary school wanting its pupils to go on one of the tours can call Anne Reed on 01274 692515.