Brass class ended well. I spent the rest of the week working on a trumpet that belongs to one of the lunch ladies at school! It is a King 601. It had stuck slides, stuck valve caps, red rot in the mouth pipe, and dents that needed to be removed. I unstuck everything except for the main & second tuning slides and then chem flushed it. After three days with penetrating oil the slides still had not moved so I cleaned the trumpet in the ultrasonic cleaner. After the cleaning, more penetration oil, and some pulling tools I got both slides unstuck. I had to replace the mouth pipe because the red rot was so bad. I used a silver plated mouth pipe that was an extra in the shop in order to save her some money. The king outer tuning slide did not go on that pipe as far as the pipe's original one, so I had to spot plate it. It was so neat!!!! I'm not finished with the project, but I will work on it when I return to brass class!