Chemical drain cleaners are dangerous to use as they are highly poisonous and caustic can cause skin burns. Also, they’re not always effective, thus leaving you with a sink full of toxic chemicals filled water. Alternatively, a homemade drain cleaner is perfectly safe, and not to mention perfectly inexpensive. To be clear, a homemade cleaner is not more effective than a commercial cleaner, but if neither is going to work, wouldn’t you rather have a sink full of a harmless cleaner than a toxic one? And the fact is, you don’t always need the strength of a chemical drain cleaner. A slow drain often can be cleared with boiling water and a mixture of baking soda and vinegar. If you’ve ever made a model volcano erupt with this household concoction, you have an idea of why it works on drains. Baking soda (a base substance called sodium bicarbonate) and vinegar (a mild acetic acid) react together to create a fizzy, bubbly action that releases carbon dioxide. So why not have a little fun while clearing your drain?