What is a common signal of a leak in a tank?

A common signal of a leak in a tank is indicated by unexplained drops in fuel levels or visible signs of product outside the tank. When a tank is leaking, the volume of fuel within it diminishes without any corresponding legitimate consumption, leading to noticeable reductions in fuel levels. Additionally, if fuel leaks outside the tank, it can create visible signs, such as fuel puddles or stained soil around the tank area. Both of these observations are direct evidence that the integrity of the tank has been compromised, facilitating the loss of product either into the surrounding environment or through other pathways.

The other signals mentioned may suggest potential issues but do not provide definitive evidence of a leak. Increased pressure may indicate blockage rather than a leak, higher-than-normal fuel consumption rates could result from various factors unrelated to a tank defect, and noise coming from the tank may stem from operational issues. Together, these factors highlight why signs of physical fuel loss are the most direct indicators of a tank leak.