This Old House

How to Keep Your Septic System Working Properly

Richard Trethewey

How to Keep Your Septic System Working Properly

Learn how a septic system works and how to avoid problems with yours. Find out why it needs to be sized according to the number of bathrooms in the home, and why you shouldn't flush paints or solvents or other things that can kill off the bacteria needed to break down the solids in the tank.