Steaming your sink drains can stop the build-up of dirt, grime, mold, and bacteria in your drain pipes and increase the speed at which your sink empties. Growing mold can produce foul odors, and while using chemicals to clean drains can help, chemicals may also damage your pipes. If this results in pipes splitting or cracking, a spillage of a potent mix of bacteria, mold, chemicals, and dirty water can result. Avoid the problem by regularly steam cleaning your sink drains instead.