What is the function of a sump pit in a plumbing system?

The function of a sump pit in a plumbing system is primarily to collect water, particularly in basements, where water may accumulate due to heavy rainfall, flooding, or high groundwater levels. Once water enters the sump pit, it is directed to the sump pump, which is activated to remove the water from the pit and discharge it away from the foundation of the building. This process helps prevent water damage and helps to keep the basement dry.

The sump pit acts as a reservoir, allowing the pump to operate efficiently by collecting water in one location before it is pumped out. This design is critical for managing water levels and protecting structural integrity, especially in areas prone to high water exposure.