What should you do if you notice fuel vapors in the bilge?

If you notice fuel vapors in the bilge, the safest action is to ventilate the area and avoid starting the engine. Fuel vapors are highly flammable, and starting the engine could create a spark that ignites these vapors, leading to a dangerous situation such as an explosion or fire. By ventilating the area, you help disperse the vapors and reduce the risk of ignition. It is crucial to ensure the area is well-ventilated and any potential sources of ignition are eliminated before taking further action or investigating the source of the vapors.

Ignoring the vapors or only responding if they are strong poses significant risks, as fuel vapors can ignite even at low concentrations. While leaving the boat and calling for help may seem like a safe option, it does not address the immediate hazard of the vapors present in the bilge and can put you and others at risk. Therefore, prioritizing ventilation and avoiding any actions that could produce a spark is the safest and most responsible course of action.