I have an unusual problem. I have a dryer in an interior room in my house and it is vented to the outside thru the foundation. When I dry clothes, the vent pipe fills up with water (about 3-4 gallons). I first thought this was a leak around the fittings and reset the fittings tightly, but noticed that the water was perfectly clean, no mud or any dirt. This caused me to believe that it is the condensation from the clothes in the dryer. I now have to vacuum out the dryer vent (sometimes weekly) to remove the condensation as enough of it forms that it blocks the dryer from venting from the amount of water in the pipe. I think that the pipe is angled downward from the room where the dryer it since it is about 8" below the surface with 90 degree elbows being used to raise it up and turn the pipe back horizontal. I have a louvered vent cover to prevent water/animals from entering the dryer vent. I was considering constructing a "french drain" as that is the only thing that I can think of to distribute the condensation. Any other ideas? Also, should a dryer be doing this? I do live in Florida in the panhandle where it is quite humid, but none of my neighbors seem to have this problem. Thanks for you time - Max.