Still no clear answer as to where the water came from. The plumbers came and checked things out today. Their opinion is it is from the air conditioner. But the problem the landlord has with that is the hose for the airconditioner runoff is pointed right at the drain. Which is in front of the bathroom door. Yet the room that was the most full of water was on the other side of the back wall of the bathrrom, behind the tub. And the current of water was coming from the corner of the wall where the tub is. Yet the hose is no where near that area and is in the opposite direction. So no clear answers yet but the downstairs is now almost completely dry which is a good thing.