This image represents National Backflow Prevention Day, observed annually on August 16 to promote awareness of backflow prevention in plumbing and its role in maintaining clean drinking water. The logo features backflow prevention valves and highlights the importance of protecting potable water supplies from contamination. The day commemorates the historic 1933 Chicago World’s Fair backflow incident, emphasizing the need for strict backflow prevention plumbing regulations and professional testing. Join the movement to ensure water safety!