Posted by Michael on August 18, 2003 at 19:12:54:
I just got back from a month long trip out of state and i returned to my resting tuba. When i got back all of the valves were frozen. To be expected. I managed to free all of them with oil except the fourth valve. It will move and i have been oiling it religously but it will not come free. Any ideas as to how to fix the problem. By the way they are rotary valves. Thanks for any help