Outdoors Signs and symptoms of septic failure By Patrick Collins Published: October 21, 2021 Updated: June 8, 2022 share Share on Facebook Share on Twitter Share on Pinterest Copy Link Cancel Signs that your septic system is malfunctioning are usually obvious. From minor venting issues to septic field leaks, here are the most common signs and symptoms of septic failure and how to handle them. Related Story Cottage Q&A: septic odour in winter