Toothbrushes with timers have been handed out to children at four adventure playgrounds, so they can find out how long they clean their teeth for.
About 1,000 children received the give-aways at Chaulden, Bennetts End, Grovehill and Adeyfield, handed out to mark Dacorum Borough Council’s installation of automatic metre readers.
They will record the volume of water consumed on the hour, every hour, each day, at all of the authority’s main buildings, feeding the information onto an interactive webpage.
They will be installed at of the borough’s civic centres, adventure playgrounds and cemeteries – where usage rates will be plotted on a satellite map with an annotated graph.
The council will accurately measure a baseline of usage and from this aim to cut the annual utility cost by five per cent in the next 18 months.
Council environmental sustainability officer Nicola Turvey said: “As part of a national environmental standard for business, we are committed to continually improving our environmental performance.
“Considerably reducing water consumption is a very positive step forward.”