👉 Hydrants are devices used in water treatment plants, particularly on roads and highways. They are designed to collect and treat wastewater from these areas, ensuring that it is not discharged into bodies of water or treated with harmful substances. The main function of a hydrant is to divert the flow of wastewater from one location to another without allowing any pollutants or contaminants to enter the water system. This helps to maintain the quality of the water supply and prevents it from becoming contaminated by pollutants such as oil, grease