Nowadays, We found rotten dirty water everywhere. These water can not be used for consumption. The cause harmful effects and enormous damage to fisheries and agriculture etc. It is important to make the natural ecosystems have been destroyed. It caused the death of many animals and plants in the water and cause water to rot. Water pollution causes the degradation of natural ecosystems, agriculture, fisheries and community. Therefore, you should find the ways to prevent pollution of water. In order not to waste time and money to fix the sewage back to the good water quality.