If you have yard wet spots, you may be experiencing septic failure. We would consider yard wet spots stage three in a septic system's four stages of failure. You may see a black, slimy substance called bio-mat. Your septic field repair system is not 100% failed at stage three, but stage four is not far off. It's important in this case to take immediate action before the problem worsens. https://youtu.be/KR3CVYCp8ik [...]