Liquid level control refers to the process of maintaining a desired level of liquid in a container or system. This is crucial in various industries, such as water treatment, chemical processing, and food production, where precise liquid levels ensure safety and efficiency. To achieve effective liquid level control, various methods and devices are used, including float switches, level sensors, and pumps. These tools monitor the liquid level and automatically adjust inflow or outflow to maintain the set level, preventing overflow or depletion.