This seems like a dumb question, but I don't know the answer, so...
The diverter on my old tub spout isn't working well anymore, so I want to replace the tub spout. I have a 1/2" copper pipe slip connection. I took the old main unit off and what was left behind was the plastic sleeve shown in the picture. This sleeve is quite loose - I can twist it around the pipe freely and can pull it back and forth on the pipe a very tiny amount. But I can't pull it off. I've pulled up until the entire copper stub out is pulling out of the wall. I don't want to pull any harder and break a solder joint in the wall or something. It sort of looks like the shiny copper with the groove in it that you can see through the slot in the plastic may be holding things up - it almost looks like an extra sleeve over the pipe. Although if it is, it is very thin. I've thought about trying to cut off the plastic sleeve, but I'm worried about burning my bridges - at this point I can still go back to the old spout.
Does anyone know what is going on here, and can provide me with advice?
Thanks in advance,