Re: ball barings?
i use system jo lube on some plastic bb's. it works like a charm.
as for getting it out, if its really really stuck, and you cant force it out via air pressure or even pushing a pipecleaner out..... you might have to consider some wd40 and then do some heavy cleaning afterwards.
remember to wash your purge valve too when you wash the 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