http://www.homebuildingandrepairs.com... Click on this link for more information about plumbing repairs, bathroom remodeling and home building. In this video I hope to explain a few things you should consider before using the plumbing vent pipes that stick out of your roof to unclog a plugged drainpipe with the plumbing snake. The design and layout of the pipes can make all the difference in the world on whether or not you can actually use the vent pipe with a success.