Submersible water pumps (dredgers) are used for draining and discharging water. Uses: wells, tanks, construction projects, and draining swimming pools. Features: sturdy metal structure and equipped with an electric float for dry run protection. Performance: available in different capacities, such as 1 horsepower and 1.5 with a lifting capacity of up to 38-51 meters. Technical specifications: operates at 220 volts and comes with standard water outlets like 1 inch.