Filter performance 1997 photography 75x60cm
It happened in Qiantangjiang River in Hangzhou , Zhejiang Province. The artist put one rubber tube into the river for the suction of water and the other one to pour urine to the river. The process last for four hours. A relationship of mutual pollution or mutual purification is established between the Qiantangjiang River and the body of the artist. The river becomes another circular system of the body or the body becomes another branch of the river.