: You blled it just until the water comes out. : : My radiator makes a loud clank every hour or so. : : When bleeding it, how long do I let the water come out?This is probably really stupid… but how do I actually bleed a radiator? I have to get a radiator off of the wall to remove the wallpaper behind it, and paint the wall etc, and have never done anything like this before.Can someone help? Please email me with any advice… Thanks in advance, Stu…