Limey..........? We're Brassed Off....

[Beest]

As far as I am aware the instrument is in at least as good condition as when we recieved it, which is to say visually awful it's obviously the nasty one they lend out last, it's perfectly playable.

This is the first time he has tried to clean it, so these bits may have been stuck when we received it.
Do they they tear them down and inspect them between users, don't know.
I don't know anything about brass instruments, but something about corrosion, I don't think it got so bad in time we have had it, it's not just one, 5 of 6 valve caps and 2 of 6 (?) slides are stuck.

I'd prefer to be supportative of the schools budget and unstick and clean them and return it in better condition than when we got it.

Are there even any rubber seals in Brass instrumnet, I suspect not, brass instruments have been around longer than rubber, but they may have traditionally used leather or other materials?

I've tried WD40, and an improvised strap wrench with bicycle inner tub, no luck.

I'll get my hands on a proper strap wrench, plus bath time.