Petrol vapours.

[HughN]

The plastic fuel tank for my boat goes in the seat that doesn't have any dedicated means of venting. It also has the rear of the battery switch in there.

Apart from keeping the tank elsewhere when it is not being used are there any suggestions for stopping vapours building up?

[Ovey]

The simplest solution would be to add a couple of small vents; one either side. They're cheap enough and an easy job to fit. (Although I was lazy and got them fitted when my boat was in for a major engine service).