| Re: Leadpipe Crud
Actually, Red Rot can occur anywhere on the inner surface of the brass. It is QUTE common in the CENTER of leadpipes, in the area between where the mouthpiece shank goes in furthest . . . and the tuning slide goes in furthest.
I suspect this is also the area of concern for the originator of this thread. Let me explain why . . .
Gunk likes to accumulate in that area because nothing rubs against this area and it is also an area that can trap static spit and organic debris when the horn is put back in the case with the tuning slide pushed all the way back in.
This is the spot famous for showing red rot on those otherwise wonderful early Benge trumpets.
It is the spot most likely for a little bubble under the silverplating to indicate a spot of red rot has already eaten through the leadpipe on horns that are sometimes QUITE new.
As a red rot spot begins in this area . . . a small but growing "pit" begins to grow outward through the brass at that spot . . . and this little, nasty depression of rotting brass is a perfect spot to accumulate even more organic debris . . . sort of like a tooth cavity being a great spot to catch even more decay-causing bacteria in your mouth.
If the spot won't clean up with a brush to be clean and mirror-like, I truly suspect that "decay" has begun. There are ways to lessen the speed of further destruction . . . see a competent, experienced technician for solutions.
T. |