Bleach is a Sanitizer , not a Drain Cleaner .
An interactive flowchart titled "What is your clog?" does pouring bleach down the drain unclog it
Using bleach to unclog drains comes with some risks: Bleach is a Sanitizer , not a Drain Cleaner
Save the bleach for whitening laundry and disinfecting countertops. For a clogged drain, buy a $5 drain snake or a bottle of enzyme cleaner. Your plumbing—and your lungs—will thank you. Bleach is a Sanitizer