Originally Posted by horvath
Bob: Forgive me, but I don't even know what a ball valve is. I want to add this filter though, so I'm just gonna be sure to keep the lines that go in and out of the filter *above* the fuel level of the tank.
66GMC: Thanks for the info about the armored steel tubing.
Alan, It's just a type of shutoff, they are called a ball valve because there is a ball inside. the handle goes on to a threaded rod that's into the ball, so you can turn it. This ball has a hole drilled through it to line up with both ends when the handle is opened. turn the handle 90* and the ball will block both ends. If I were you I would put one in, better to be safe than sorry.
Like I said in another post you can also put it by the wheel opening, to shut off when you go out of town.