Had done the same to me three devices and therefore dry my basement. Works without problems, with a small lift pump that I have done me in addition, the device can be on the ground and the water is automatically pumped out. For the permanent drainage you have behind a plastic ring which is pre-cut to the device, remove. Since then comes through the tube, unfortunately here is an inner diameter of 16mm necessary, but the hoses from the hardware store are all Zöllig. Then have a smaller tube with the hair dryer while heated until it fitted, secured with cable ties. A device of the three I had to return it, it rattled and not drained properly. Since I own three, I could compare yes. Since I entfeuchte, My Problem Child is (25m2 room with moist wall) nice and dry, not moist places more on tiled floor and this already with the setting 75%. Yes and with this device you can digitally read how much humidity, the room straight. But one thing is negatively noticed. Firstly, all three devices showed not to the same measurement result, all were at the same room. And secondly, the devices schaltzen immediately when crossing a the target moisture, but only so differed by 5%. So I make a 75%, the part will turn on only at about 80-81%. Maybe so willed, no idea. Perhaps better to reduce the switching operations to a certain degree? Would have liked a real one-off, but unfortunately only a soft switch is installed, so no way to hang on a timer, because you really have to turn on itself, or programmed to a certain humidity and left in standby mode. Therefore I a star less.
Update 03.02.2013: The devices are still running fine. there are no problems. the filter back I've already cleaned several times and then rinsed with water, otherwise is actually waiting niŽchts.