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The diagram illustrates the number of stages that required to produce fresh water. Overall, the process of freshwater is a completely mechanical and lengthy process consisting of ten stages, which starts with water passing into intake screens and finishes with clean water to take from faucet. The process begins when the water passed from intake screens, which is followed by pumping the water into pipe. Once placed, it is flash mixed with chemical elements, such as polyaluminium chloride and oxidants to pass flocculation stage and subsequently moved to settling basin to clean the water from filings. During the next stage, the water passed through chlorine blocks to make more clean and then it proceeded to pass from inside the filter membrane, after which it is disinfected with chlorine, lime or ( sodium hydroxide), fluoride to ensure that it is safe for drinking. Once the treated water pumped to household faucets through the distribution system.