I use oxi and follow that up with a spritz of diluted starsan to counter the minerals and alkalines. Then put them away for later use and respray with starsan just before using.
I noticed that the area around the neck was clean, and the inside was clean, but the outside where I did not rinse with starsan had a dry film. So I think it must be working.
Day after day, it reappears. Night after night my heartbeat shows the fear. Ghosts appear and fade away. Come back another day.