I took the Sears man's advice and shot a hurricane down the vent tube with my leaf blower. Nothing appeared outside and that's when I realized the vent I thought was for the dryer was actually for my stove. Thus began a hunt for another vent outlet. Guess what? There isn't one. Idiot contractor strikes again. So, I have no idea where my dryer vents, but I have visions of the crawlspace under my house looking like a lint graveyard. I also invision that my efforts today looked not unlike Carl Spackler cleaning his "space."