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 Surfactants, Builders, Bleaches, Other Ingredients What About Antimicrobial Products? Glossary of Common Ingredients A Glossary of Common Terms Tips for a Properly Functioning Septic Tank System Further Reading The Septic Tank System Biodegradation, Adsorption