Ayako Harada and Emily Rivers       Introduction   Greywater systems reuse non-fecal water for irrigation of landscape plants on a residential scale. The initial cost and installation of a Greywater System may be high, however over time the amount of water used and the amount of water returning to wastewater treatment facilities will diminish and reduce water bills. A Greywater system can be designed based on the layout of a site and the amount of users and their needs.