What does New Jersey law require to prevent back siphonage in pesticide application?

New Jersey law emphasizes the importance of preventing back siphonage during pesticide application to ensure that contaminated water does not re-enter the potable water supply. The correct answer, check valves, are specifically designed to allow fluid to flow in only one direction, which effectively prevents any backflow or reverse flow that could occur due to pressure changes in the system. This capability is essential in maintaining the integrity of water supplies when pesticides are being used.

Check valves are commonly employed in various applications where it is critical to keep contaminants from flowing backwards into a clean water source. Their use is mandated by regulations to safeguard public health and the environment.

While the other options—filters, pressure reducers, and backflow preventers—may also contribute to maintaining water quality and regulating pressure, they do not specifically address the issue of preventing back siphonage in the same direct manner that check valves do. Thus, under New Jersey law, the requirement is for check valves to be installed as a preventive measure against back siphonage during pesticide application.