A windmill may be considered one of the most iconic sights of Australian Farming life. A pump like this rest at the heart of all such windmills, turning wind energy into water for farmers both here in Australia and worldwide alike. The water windmills access is referred to as an aquifer, an underground layer of water trapped in rocks but accessible with use of water wells and windmills. Australia is home to an underground aquifer known as the Great Artesian Basin. It is the largest and deepest aquifer in the world. Stretching over 1,700,000 square kilometres, the Basin underlies nearly a quarter of the continent including most of Queensland, the south- east corner of the Northern Territory, the north-east part of South Australia and the northern part of New South Wales. The basin is 3,000 metres deep in places and is estimated to contain 64,900 cubic kilometres of groundwater. To try and give this number context, a megalitre is a million litres. The Great Artesian Basin contains 65,000 million megalitres of water. This would be enough to cover all the land on the planet in almost half a metre of water.Lift style piston pump typical of an Australian farm connected to a multi-bladed windmill. Bronze cylindrical construction coming up from removable wood base. Rotating lever is above outlet pipe which would send water to the storage tank.windmill, australian farming, great artesian basin, aquifer