(A rigid metal duct provides better airflow.) Make sure your outside vent cover opens while the dryer is operating and you can feel air flowing through it. If your dryer takes too long to dry ...

"I wanted to create a modified dryer duct that would always ensure a straight length between the dryer vent exhaust outlet ...

Learning how to properly clean a dryer vent (and doing so regularly) will keep your dryer running smoothly—and ensure your laundry room doesn’t become potential a fire hazard.