What should be checked regularly to ensure proper function in an underground storage system?

Regularly checking fitting ratings is crucial for the safe and efficient operation of an underground storage tank (UST) system. Fittings, which include connections, joints, and seals, are integral components that ensure the integrity of the tank system. These components must be rated properly to handle the type of substance being stored and the environmental conditions they will encounter.

Monitoring fitting ratings helps to prevent leaks and spills, which can lead to soil and groundwater contamination. Additionally, ensuring that fittings are rated appropriately helps maintain compliance with state and federal regulations concerning UST systems.

In contrast, while factors such as tank color, operating pressure levels, and ventilation systems are important, they do not directly relate to the core structural integrity and safety offered by properly rated fittings. Tank color does not affect functionality, operating pressure levels are more relevant to specific types of systems (like pressure systems), and ventilation systems, while crucial in some contexts, pertain more to air quality and safety rather than the direct functioning and integrity of the tank fittings themselves. Thus, focusing on fitting ratings is essential for ongoing safety and compliance within an underground storage system.