When we arrived at Hamsi village, we saw a pump pushing water from the pond below the village.
The pump does not run on electric motors but on hydropower. The villagers could not say for sure how the pump worked. It seems to work with pneumatic pressure due to the air tank. But the sound of a rocket ringing every three seconds. Only the air tank and the inlet and outlet pipes are out, and the lack of a compressing accessory is unbearable.