Have a smaller window unit air conditioner that cools the air but somehow doesn't seem to provide the comfort that is expected? Perhaps it is not draining excess water from the inside air to the outside. We purchased a new A/C window unit and cool air came out but the room felt damp and uncomfortable. It was making gurgling and water dripping noises while running. Turns out there was no drain for the water designed into our unit, even though the owner's manual pictured a small tube out the back (which was not manufactured into our unit). One day last summer, I took a ladder outside and drilled a small hole in the outer side of the bottom panel (be very careful not to allow your drill to poke up into unit and pierce a coil!!). A small stream of water immediately started exiting the unit and didn't stop for literally minutes. Now, on humid days the A/C drips steadily from the back, taking humidity out of the inside air. When taking out your A/C in the fall, have you ever had a pool of water splash out? Maybe you have the same issue. Also, be sure when A/C is installed in window that it tilts very slightly down toward the outside, so that any water condensing off the coils flows down toward the outside. Enjoy better comfort this summer!