Re: Who thought water and computers mixed?
We had one of those portable units semi-permanently installed in my old office (a small room containing 5 cubicles), taking up about half a cube. Two tubes coming out the front blowing cool air, a big tube going up into the ceiling for hot air, and a tub for condensation that had to be emptied occasionally. It was obnoxiously loud, and didn't seem to do much aside from dehumidify.
At some point, we took a look at the tube going up into the ceiling. It only went to the false ceiling, blowing the hot air into the space above - which, having nowhere else to go, then came back down into the room. Hmm...
Eventually, someone found a damper closed in the line going to our one small vent. Once that was opened, the office got pretty comfy, and they got rid of the portable air conditioner.