Originally Posted by kellysails
My wife just rescued our Tohatsu gas tank from the sun. She said there was a lot of pressure in it when she loosened the cap. Crap, dogged a bullet on that one, it's always humbling when I realize what an idiot I can be at times. Jeeezzzz.
It never occurred to me that the valve was one way.
I wonder if the tank manufacturers conducted a failure test with the one way vent caps? As far as I could see, there was just the small one way valve in the middle of the cap. The one time I left it in the sun there was a LOT of pressure in the tank.
Has anyone had a tank split or leak because of the excess pressure that can develop?