A stopped up sink or tub is a real hassle, but pouring toxic chemicals like Drano on them isn’t so wise. Not only will that pollute our waterways, but the products can cause chemical burns and are highly dangerous if ingested. Do you really want that in your home?
Baking Soda and Boiling Water: Pour 1/2 cup of baking soda into the problem drain, followed by 2 cups of boiling water. If that isn’t doing it for you, chase the baking soda with a 1/2 cup of vinegar and cover tightly, allowing the vigorous fizzing of the chemical reaction to break up the gunk. Then flush that with one gallon of boiling water.