Does Bar Soap Clog Drains?

Bar soap is a bathroom staple, but did you know it can be one of the sneakiest causes of slow drains? Over time, the ingredients in bar soap can combine with other debris in your plumbing, creating stubborn blockages.

Let’s explore how bar soap can clog drains, what signs to watch for, and how to prevent this common plumbing problem.

How Bar Soap Can Clog Drains

Most bar soaps contain fats or oils combined with an alkali. When soap residue mixes with minerals in hard water, it forms soap scum. This sticky substance can cling to the inside of pipes and catch hair, dirt, and other debris, leading to clogs over time.

Signs Bar Soap May Be Clogging Your Drain

• Slow water drainage in sinks, showers, or tubs.

• A slimy or chalky residue on drains and fixtures.

• Bad odors are coming from the drain.

• Standing water after use.

Ways to Prevent Bar Soap Clogs

1. Switch to Liquid Soap: Liquid body wash or hand soap leaves less residue behind.

2. Use a Drain Strainer: This keeps hair and soap chunks from going down the drain.

3. Flush with Hot Water: Once a week, pour boiling water down the drain to break down buildup.

4. Regular Cleaning: Use a mild vinegar-and-baking-soda rinse monthly to dissolve soap scum.

How to Remove Existing Bar Soap Clogs

If your drain is already slow:

• Try a plunger or drain snake to dislodge buildup.

• Use a safe, enzyme-based drain cleaner to break down organic matter.

• If the clog persists, call a plumber to professionally clear the line.

Tip: While bar soap is convenient and eco-friendly, it’s best to take preventive steps to keep your drains clear. Switching to liquid soap or doing regular maintenance can save you from costly plumbing repairs.

Call Vertical Plumbing at (480) 577-8720