This old water tap leaks a lot, at the area pointed at by the little red arrow.
It does not leak from the spout, but from where the lever enters the housing (sorry, I'm not native english, I hope I'm using the words correctly...).
It leaks only when turned on; when the water is off, it is completely dry. In the past, this did not matter to me, but I would like to use an automatic system with it now, which means that it will be open all the time.
So what do I do? I guess I unscrew the nut where the arrow points, and will then be able to take out the assembly, clean it up etc., but then what? Is it enough to wrap it in hemp and screw it in again?