It happens to all of us. At some point, the kitchen or bathroom drain clogs and water backs up. At times horribly unpleasant odors are unleashed. While standard practice calls for lye-based drain cleaners, these toxic products can damage the pipes as well as your lungs. If preventative measures have failed to keep your drains clear, there is a natural solution. Instead of reaching for that bottle of caustic drain cleaner under the sink, try earth-friendly, homemade drain cleaner.