What is the primary function of the alarm in a dosing tank system?

The primary function of the alarm in a dosing tank system is to alert the owner of a malfunction. This is critical for the maintenance and safety of the septic system, as alarms are designed to activate when there is an issue that could potentially lead to a backup or failure of the system. By signaling a malfunction, the alarm helps ensure that the owner can take prompt action to resolve the problem, which is essential for preventing further complications or health hazards associated with system failures.

In this context, while other functions may seem relevant, they do not address the primary purpose of the alarm. For instance, notifying when the tank is empty or indicating when the tank is full usually falls under level monitoring rather than malfunction detection. Providing power to the pump is unrelated to the alarm's function, as alarms typically function independently of the power supply to the system. Thus, the correct answer emphasizes the alarm's role in system oversight, ensuring timely responses to any issues that arise.