[CV Andini Sakti] Currently electric water pump is used as the aerator. currently the pump needs to be always turned on in its peak. This method made the life span of the pump reduced, and the electricity bill also maximized.

[CV Andini Sakti] They still uses conventional monitoring systems, such as measuring the pH of pond water, which still uses litmus paper. Water quality measurement results are written on paper.

[Chambre d'Artisanat] Craftsman sits on a low chair, close to the floor, with an uncomfortable and tired sitting position, where he uses both hands, and he is supposed to keep the same rhythm of rotation while winding the fibers at the same time.

나무목재를 톱으로 자르다가 나무가 톱을 타고와서 몸을 칠 수 있다.