After flushing and cleaning holding tanks during winterization, what should you do with each tank?

Closing the termination valves after flushing and cleaning holding tanks during winterization is essential for preventing any potential leaks and ensuring the tanks are secure throughout the winter months. By closing these valves, you effectively seal the tanks, reducing the risk of any residual waste or content from escaping, which could lead to contamination or unpleasant odors. It also protects the tanks from exposure to environmental elements such as freezing temperatures, which could damage the valves or the tanks themselves.

When winterizing, the objective is to safeguard the systems, and closing the valves is a necessary precaution in achieving that. Other options, such as leaving the valves open or filling the tanks with water, could create risks of leaks or damage from freezing, and disconnecting hoses may not be sufficient on its own without also securing the valves to prevent issues.