Hunter Water has given the school a grant to ensure all 92 of the students have a clear personal water bottle to encourage them to drink water in and out of the classroom.

The drink bottles were provided to complement the school's involvement of Hunter New England Health's Crunch and Sip program.

Crunch and Sip has run for the past four years at Arcadia Vale and entails the children breaking from lessons once a day to eat fruit and drink water in the classroom.

Hunter New England Health promotes water as the healthiest drink for children through its Good For Kids, Good For Life program.

Teacher Debbie Fawkes, who co-ordinates the program at Arcadia Vale, said the clear bottles enabled staff to ensure children were consuming water instead of flavoured drinks.

"We used to find they would often have cordial in their drink bottles," she said.

"Now they're drinking heaps more water."

The students are embracing the concept.

"I fill it up twice a day and probably drink most of it," school captain Amy Clarke said of her drink bottle.

Vice-captain Suriya Sandall said: "I think it's good to let the kids have the bottles at their desks so they can drink whenever they want to."

But there is one downside to drinking so much water, as candid year 5 pupil Hollie Renshaw has discovered: "It makes you go to the toilet a lot."