King is aware of water pollution. He gave his idea about solving water on April 15 1985 the various agencies working together to improve wetland Makkason as a place to store water assist in drainage and relieve waste water into the Samsen canal. The advice given use filtered waste water hyacinth because its is qualified to act as a filter. This is called a natural water filters and at the same time need to keep the hyacinth from the lake every 10 weeks in order not to obscure the hyacinth have reproductive sun is shining into the lake.