Pour 1/2 cup vinegar down the drain immediately after the baking soda. It will fizz and bubble vigorously.
Boil 2 cups of water and pour it slowly down the drain. This softens soap scum and grease.
Cover the drain with a cloth or drain cover to keep the reaction inside the pipe. Wait 15–30 minutes . For tough clogs, wait up to an hour.
Here’s a step-by-step guide to unclog a shower drain using vinegar and baking soda. This method works best for minor clogs caused by hair, soap scum, and mild buildup.