If a man-way weighs more than a single wall tank, what effect could that have on the tank?

If a man-way weighs more than a single wall tank, it can create significant stress and load distribution issues on the tank structure. The weight of the man-way could lead to excessive localized pressure on the tank wall, which may result in cracking. This is particularly concerning if the tank is not designed to bear such weight or if there are pre-existing weaknesses in its material or structure.

Cracking can compromise the integrity of the tank, leading to potential leaks or structural failure, which poses safety and environmental hazards. Therefore, this outcome illustrates the importance of ensuring that components like a man-way are appropriately designed and matched in weight and load capacity to the tanks they are associated with.