Re: brass hookahs (myas) start to get weird smell
first off, you dont rinse it out every few weeks, not to be rude, but that is nasty. You need to clean it after each use.
Second, the "brass" myas arent brass on the inside, do you mean the brass colored stem?
you may have gotten it to rust.
if not, use a brush, try using beer to clean it, look for sam's vid on that in the video section.
try lemon juice and baking soda, several times.
otherwise, you may have some rust and you may need a new hookah.
"blu mist rulz dawg an that stuff ain't like it an if youz don't agree you bez a shithead yo" - Hajo Flettner