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According to the U.S. Census Bureau, 25% of homes in the United States are connected to septic tanks. That means that all household wastewater from these homes is treated on the property owner's site, rather than in a municipal wastewater treatment facility.

Studies show it's safe to use and dispose of household cleaning products in these systems.

As you read on, you'll find basic information about how household cleaning products are treated in septic tank systems. But first - here's a look at how these systems work.

What It Is and How It Works

 Cleaning Products in Household Wastewater
Surfactants, Builders, Bleaches, Other Ingredients
What About Antimicrobial Products?
Glossary of Common Ingredients

 Let's Talk Septic Tank Systems
A Glossary of Common Terms
Tips for a Properly Functioning Septic Tank System
Further Reading

The Septic Tank System
Biodegradation, Adsorption

The Septic Tank System