====== Water Supply System ====== A water supply system pumps, distributes, and treats water. {{ :flow-diagram-of-water-distribution-system.png?600 |}} ===== Well ===== A well is a hole, usually drilled about 500 feet. It allows access to groundwater from pumping. ===== Treatment ===== Water can either be treated at a central location or treated as it enters the home. ===== Storage Reservoir ===== A storage reservoir stores backup water. It is used to ensure a constant supply of water even at peak times. Gravity pulls water from the reservoir to homes. For this reason, it must be placed at a higher elevation than homes. ===== Rainwater Collection ===== Rainwater collection can be used to supplement water supply. It requires additional treatment for bacteria and microbes.