I've cleaned two new sapphires and both of them don't work the same afterward. I pulled the tube off which inevitable means that the top metal piece will be in the tube. I got it out of the tube and carefully put the wick back through it. I washed out the coil and dry burned it. put it all back together and now I'm just burning my throat. I blow and blow into the thing and if Im lucky get a decent vape once and then back to burning my throat. these worked perfectly before cleaning. the only reason I cleaned them as it gets tot he point where you can barely draw through them anymore as they are so gunked up.