Re: Help repairing
usually the ball bearings are underneath an unscrew-able cap.
ball bearings can gum up and stick if you don't pay attention to them.
usually, you just take off the cap, take out the ball, and put the new one in.
you shouldn't ever really need a new one unless you lose it.
i'd just clean the ball, and the part where the ball sits, since it's probably all stuck in there.
if you're really desperate, use wd-40 and give your hookah a DEEP DEEP cleaning after.