What is the purpose of a drainage system?

The purpose of a drainage system is primarily to convey sewage and liquid waste to disposal. This system is integral to ensuring that wastewater from various fixtures, such as sinks, toilets, and showers, is efficiently transported away from the building to a treatment facility or sewage disposal system.

Effective drainage systems are designed to prevent blockages, facilitate proper flow by using gravity, and minimize the risk of contamination to the surrounding environment. Properly functioning drainage is essential for maintaining hygiene and public health, as it ensures that waste is removed from living and working spaces, thereby reducing the risk of health hazards associated with stagnant or improperly managed wastewater.

While other systems and components of plumbing are essential for supplying clean water, providing structural support, or preventing leaks, those functions are distinct from the primary role of a drainage system.