What does backflow refer to?

Backflow refers to the situation where water flows in the opposite direction than intended, typically from a contaminated source back into a potable water supply. This happens due to changes in pressure within the plumbing system, which can occur for various reasons, such as a drop in water pressure or a cross-connection with non-potable sources like irrigation systems, water tanks, or industrial processes.

Understanding backflow is crucial for maintaining safe drinking water supplies and preventing health hazards associated with the contamination of clean water. It highlights the importance of implementing backflow prevention measures in plumbing systems to ensure that clean water remains uncontaminated and safe for use. Proper regulation and adherence to sanitation practices are vital to mitigate the risks associated with backflow.