Unblock A Drain With Baking Soda [extra Quality] Here
How to Unblock a Drain with Baking Soda: A Complete DIY Guide
This is the most popular "volcano" method, effective for freshening stinky drains and clearing minor soap or grease buildup. Unclog a Drain with Baking Soda and Vinegar unblock a drain with baking soda
Here's the step-by-step process: