Re: Found a Hookah on Craigslist...need help
I would absolutely replace the hose, the idea of using a used hose from someone I don't know gives me the willies. And definitely clean the rig within an inch of it's life.
Beyond that, it is a bit of a gamble. It's possible the guy just has a better rig he prefers, but it's also possible it smokes terrible and that's why he's unloading it. You buys your ticket, you takes your chance...