Author 'Alain 56' : The first wheel is not in service. You can see on the second wheel, the buckets (trapped between the two circles that form the wheel are inclined to the right. Arriving at the top of the wheel, the buckets are straightened and empty into pipes of bamboo. These last, before arriving in the rice fields, it can travel hundreds of metres. It's a bit always the same, in the country without much technology, people's imagination is boundless.