When your septic tank is functioning properly, it should not make any noise. The one exception to this rule is a tank with an air pump, which makes a faint humming noise. However, if you do not have an aerobic septic system, or you have one but are hearing noises other than this faint humming noise, it’s the sign of a problem. Noises coming from your pipes could be a plumbing issue, but if you’re hearing running water, trickling, or gurgling noises coming from your septic tank, you have an issue with the tank itself. We’ve compiled a list of some of the top causes of these noises to help you fix the problem.