The previous owner of my Ranger 22 sailboat was storing the outboard's
plastic fuel tank inside the boat in the quarter berth (there are no
lazarettes). There are definitely gasoline vapors in the boat when I
open it up each weekend - so I open the hatches to ventilate.

I want to get the gas off the boat when its not in use. I thought
perhaps putting in inside a ventilated dock box might be suitable. I'm
finding conflicting advice around the net about whether this is a good
idea.

On the one hand, everyone advises that gasoline should be stored in a
ventilated place. On the other hand, some say it should be a in an
approved flammable liquids storage locker.

Does anyone do this? Is it safe?

Thanks