The main difference between a desalination reservoir and a normal water reservoir lies in the type of water stored and the design requirements. Desalination reservoirs store treated, potable water that has already been purified through reverse osmosis or thermal processes. Because this water is intended for direct consumption, the reservoirs are designed to prevent contamination, maintain disinfectant levels, and sometimes include remineralization to stabilize water chemistry. Covers, linings, and controlled access are often used to protect water quality.
Normal water reservoirs, such as dams, lakes, or surface basins, typically store raw water from rivers, rainfall, or groundwater before treatment. These reservoirs focus more on volume and collection efficiency rather than strict water quality protection, though sediment control and basic water safety are still important. They are usually open and may be larger in area, relying on subsequent treatment plants to make the water safe for drinking.
