Mackay has won the water testing competition in Melbourne over the weekend.
Samples of water were collected from in all the states
and people were blind folded to test the water.
The water was collected from Nowra in New South Wales, Launceston, Tasmania, Swan Reach, in South Australia, Geelong, in Victoria, Mackay, in Queensland and Perth, Western Australia.
The Mackay will now go on to represent Australia at the Berkeley Springs International Tap Water Tasting competition in the US next year.