My closet ceiling is leaking a brown liquid. Right above it is an air duct for my central air. I think the liquid is dirty or rusty water that has accumulated in the duct. I can hear it dripping inside the duct.
I live in a rented apartment so they will come check it out soon. I would like to know what I can do immediately to alleviate the problem. I have my A/C set to 75 °F-- the temperature outside reaches 90 °F most days. If I shut it off completely, will the leak dry up? Is there anything else I can do?