00:00:30Introduction
00:02:12Life Without City Sewer
00:04:44What Makes a Good Septic Tank
00:06:40Filters, Pumps, and Safety Devices
00:08:03There is Science Behind the Design
00:09:06What Happens Inside the Tank
00:10:15Biology At Work
00:13:07When Biology Gets Out of Balance
00:15:47Resilience and Real-Life Use
00:18:29Conclusion