What is the primary purpose of using the backflow preventer in pest management?

The primary purpose of using a backflow preventer in pest management is to prevent drinking water contamination. Backflow preventers are designed to stop the reverse flow of water in plumbing systems, which can occur due to changes in pressure. Without a backflow preventer in place, there is a risk that pesticides or other contaminants used during pest management activities could be sucked back into the potable water supply, leading to potential health risks for individuals consuming that water. By ensuring that contaminants cannot flow back into the drinking water system, backflow preventers play a crucial role in maintaining public health and safety. This is particularly important in pest management, where various chemical treatments are routinely applied.