Open hair-clogged drains using salt It’s tough to keep hair and shampoo residues from collecting in the bathtub drain and clogging it. Dissolve the mess with 1 cup salt, 1 cup baking soda, and 1/2 cup white vinegar. Pour the mixture down the drain. After 10 minutes, follow up with a 1/2 gallon (2 liters) boiling water. Run your hot-water tap until the drain flows freely.
How to Unclog a Bathtub Drain With Baking Soda ALSO, to unclog sink drains use 1/2 cup of baking soda, 1/2 white vinegar, and boiling water. Put baking soda down drain; then pour vinegar down drain; then follow it with boiling water (at least 2 cups).