Sacred Haven of Debauchery

I understand that the water chip is in the Necropolis, and therefore it's better to visit it towards the end of the game, so as not to finish the game prematurely. Right?

You fool, who told you that the game will end after finding the water chip? Go get it!
Missing caravans - old town, talk to everyone until you're blue in the face. You should find it.
Ugh, I initially wrote "carovany" and didn't even notice the mistake; the detrimental influence of the internet is making itself felt.