bligh
Guru
Cpt Bligh, I had the black ring one time crossthreaded and it was very difficult to remove. Finally resorted to a pair of slip pliers and I got it loose. Did not replace it just was more carefull putting it on. Good luck.
Roger, I dont think I cross threaded it. I completely forgot it was there retaining the plug! That's why it wouldn't come off. DOH!