Posted by Swimming pool on May 08, 2003 at 13:16:21:
In Reply to: Re: Eflat tuba problem posted by Rick Denney on May 08, 2003 at 11:12:54:
A good way to check for leaks is to plug the mouthpiece receiver, turn the horn upside down and immerse it in a swimming pool or equally large body of reasonably clean water. Observe where the bubbles eminate from. If they're coming from the valve casings, you have your answer.