Water in passenger floorboard--help.

[jdurant]

I bought a 82 2wd Blazer a couple weeks ago. I've been driving it with the carpet that is underneath the ac box pulled back to try and pinpoint where the water is coming from. I haven't seen any drops or streams yet. I've finally got around to removing the kick panel and pulling the carpet way back. I Still can't see where the water is coming from though. Any hotspots that I should look for? I'm also trying to locate the ac box drain, where is it supposed to be? Is it a hose, or just a hole, or what?
Oh, and it isn't coolant.