What Is Sodium Hypochlorite, and Why Is It Used in Power Washing?

By Bart Grabowski | August 13, 2025 |
Before and after soft washing vinyl siding with sodium hypochlorite to remove green algae and mildew buildup

If you’ve ever hired a professional power washing company, you may have heard the term sodium hypochlorite come up. But what exactly is it, and why is it used? Let’s break it down without the chemistry degree. What Is Sodium Hypochlorite? Sodium hypochlorite (NaOCl) is a powerful cleaning and disinfecting agent. In simple terms, it’s…

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