OK. Water is building up in my dryer vent. I did not install this. The dryer is in an interiore in the finished ba.t which is the coolest part of the house..I have a month old gas dryer, and it was taking about hours to dry a load a clothes. I had the vent supposedly cleaned out a few months ago, but.How to Clean a Clothes Dryer Vent. If your dryer vent hasn’t been cleaned in the past year or two, it probably needs a good cleaning. Dryer vents get .Comments about Linteater Dryer Vent Cleaning System RLE Our dryer vent is on the roof, so I started there. As an aside, the roof vent has a sheet metal cap and .