All tanks are susceptible to physical impact damage, which might come from rocks and other debris or from the stress of hitting a pothole. The rougher the terrain your equipment is in, the more likely it’s picked up some significant dents or cracks.
Pinholes, large holes, hairline cracks and dents are all common types of tank damage. It’s important for even small defects to be detected and repaired in a timely manner, because they can easily get worse if the equipment stays in use. A single bump can turn a hairline crack into a catastrophic problem that leaks fuel and keeps expensive equipment out of action.