What is the primary safety measure when removing liquids from a tank?

The primary safety measure when removing liquids from a tank is using an explosion-proof or air-driven pump. This is crucial because traditional electric pumps can generate sparks, which pose a significant risk of igniting flammable vapors that may be present in or around the tank. Explosion-proof pumps are specifically designed to operate safely in hazardous environments, effectively minimizing the risk of ignitions.

Air-driven pumps operate using compressed air rather than electricity, further reducing the chance of ignition sources being introduced into the tank environment. This adherence to safety standards is paramount when handling volatile liquids, emphasizing the importance of equipment that aligns with safety regulations and guidelines in the industry.

Using a manual siphon, while simple, does not offer adequate control and safety against spills or vapors. Fire extinguishers are essential safety equipment but do not prevent hazards during the liquid removal process. A standard electric pump lacks the necessary safety features to mitigate the risks associated with flammable substances, making it unsuitable for this task.