Re: Can you clean your hoses?
It is most likely not ash, its probably smoke residue or rust.
Blow through the hose to get this residue out. If it is brownish red...It means it is rusting and you need a new hose. I suggest you new hose should be the Washable AF hose or the razan/nammor hose. The razan and the nammor hose are pretty pricey, but they are absolutely worth it.