Originally Posted by Kwikwi
Get a small diameter cleaning brush and go to town with some baking soda and lemon juice mix. Do that a couple times including the stem tube. You might want to try using a different hose when your through just to eliminate that as the cause if you haven't already.
can u approximate how much baking soda/lemon juice/water in the mix?
The hose is okay, I haven't washed neither the hose nor the metal mouthpiece, but I have a brand new plastic disposable hose that I can try to make sure it is not the culprit