What is the maintenance schedule for a DIS?

The correct answer emphasizes the importance of adhering to the manufacturer's guidelines for maintenance of a Dispersal or Distribution Irrigation System (DIS). Each system is designed with specific operational parameters and maintenance requirements outlined by the manufacturer. These guidelines take into account factors such as the system's design, components, and local environmental conditions, ensuring optimal performance and longevity of the system.

Following the manufacturer's maintenance guidelines will provide the most effective approach to managing the DIS, as it may include specific schedules for inspection, cleaning, and component replacement tailored to the particular needs of that system. This proactive approach helps prevent potential issues that could arise from neglect or inappropriate maintenance actions.

In contrast, monthly maintenance suggested in one of the choices might not be necessary for all systems and could lead to over-servicing or unnecessary costs. Annual maintenance, regardless of the manufacturer's advice, does not account for variations in system usage or environmental impacts. Waiting for issues to arise before conducting maintenance could lead to significant problems that might have been prevented through regular, guideline-based upkeep.