What is the primary focus of cross connection control?

The primary focus of cross connection control is preventing backflow. Backflow occurs when the flow of water in a plumbing system reverses, which can lead to contaminated water entering the clean water supply. This can happen due to various reasons, such as changes in water pressure or the presence of contaminants in the submerged outlets. Effective cross connection control measures, like the installation of backflow preventers, help ensure that potable water remains uncontaminated and safe for consumption.

While ensuring water quality is indirectly related, as maintaining the integrity of the water supply helps to uphold quality, the specific action of preventing backflow is central to cross connection control and directly addresses the risks associated with potential contamination. Other options, such as preventing pest entry and monitoring food temperature, focus on different aspects of food safety and public health and do not specifically relate to the principles of cross connection control.