How many valves can a controller with 6 stations operate?

A controller with 6 stations is designed to manage up to 6 independent irrigation circuits, which are commonly referred to as valves. Each station can be programmed to operate its valve according to specific schedules and settings, allowing for tailored irrigation of different zones in a landscape or garden.

Thus, the correct answer is that such a controller can operate 6 valves, with each station controlling one valve. This setup maximizes the capability of the irrigation system by allowing the user to manage up to six different areas simultaneously or at different times, depending on the watering needs of each zone. This rationale underlines the functionality of a controller and emphasizes the importance of matching the number of valves to the available stations to ensure efficient irrigation management.