Greywater can be easily used for watering ornamental trees and plants. It can also be used in the irrigation of vegetable plants. In the greywater system, it is beneficial to use plant-friendly products without boron, salt, chlorine, and bleach, as the build-up of these chemicals can damage the plants. Greywater is released in lakes, rivers, and estuaries then it can highly pollute the nutrients but it can be a valuable fertilizer to plants.