Question

What is likely to happen if you don't ventilate your boat after fueling?

Answer 1

Boats use gasoline and gasoline creates fumes that are heavier than air. They could explode if enclosed areas. These fumes settle to the bottom of the bilge and they may explode, so for safety reasons the owner should always ventilate the boat to avoid sudden explosions.

Answer 2

If you don't ventilate your boat after fueling, the gas fumes will stay in the bottom of boat and this is very dangerous.
Explosion can happen if you don't ventilate your boat after fueling so to avoid any explosion or any problem, you have to follow the proper procedure for fueling the boat.
So always ventilate your boat after fueling.