Re: Through the hose...
If you don't have access to an air compressor you can always just smack it onto the floor a few times to loosen up the gunk and then blow the debris out. It's gross, and will make you appreciate the Razan hoses that much more.
However, I have noticed recently with the Razan's that the stem pieces have gotten a little larger in diameter and not fitting as well as older models I have. Anyone else notice that?