When are shims allowed to be used on oil tank legs?

Shims are not permitted to be used on oil tank legs according to the Maine Fuel Code standards. This regulation is in place to ensure the stability and safety of the tank installation. Using shims can compromise the integrity of the tank's support structure, leading to potential hazards such as leaks or the tank tipping over.

The code emphasizes that oil tanks should be installed on solid, level surfaces designed to adequately support their weight without additional support mechanisms like shims. This requirement underscores the importance of a well-prepared foundation for fuel storage systems. Compliance with this standard protects against risks associated with improper installations, ensuring both environmental safety and the integrity of the fuel system.

Other options such as using shims for leveling or in specific conditions like uneven surfaces may seem practical; however, they can introduce risks that the code aims to eliminate. Therefore, the prohibition of shims is a critical guideline for proper and safe oil tank installations.