Which of the following should NOT be flushed into a domestic foul water pumping station?

Flushing fabrics into a domestic foul water pumping station should be avoided because they can cause significant blockages and operational issues within the system. Fabrics do not break down easily in water, leading to clogs that can hinder the proper function of pumps and other components. Additionally, the presence of fabrics can interfere with the flow of wastewater, potentially causing backups and overflow situations that pose risks to both the system and the environment.

In a well-functioning domestic foul water pumping station, materials like human waste, toilet paper, and even vegetables are generally considered acceptable, as they are designed to be processed in these systems. Human waste and toilet paper break down more easily and are what the system is primarily intended to handle. While vegetables can contribute organic matter, they will decompose and typically do not pose the same risk of blockage as fabrics. Understanding what should and shouldn't be flushed is crucial for maintaining a healthy and effective wastewater treatment system.