What was the purpose of the sump in world war 1?

The sump, or sump trench, in World War I served as a drainage system to manage water accumulation in the trenches, which were often flooded due to rain and poor drainage. By channeling water away, it helped maintain the functionality and livability of the trenches, reducing the risk of disease and improving the conditions for soldiers. Additionally, it contributed to the overall sanitation efforts in the trenches, which were crucial for maintaining troop health during prolonged combat scenariOS.