See attached, I ordered another one, but it will be a couple of weeks I stuck a plug in the hole to stop the leak but I'm not sure what this little gadget controls .. the lines on it are not marked. I've been through the bus testing air powered accessories and couldn't find anything that seemed to change function (checked the air-toilet twice to be sure)



Thoughts on what its for? Is it safe to leave it plugged for now?




LeakingPort.jpg