Foul and unsightly, septic tank backup is never a welcomed guest. It’s vital to understand what causes your septic tank to backup so you’ll know what to do to help prevent it from happening. If left ignored, you run the risk of breaking your septic system. Avoid a costly emergency repair by practicing proper septic system care . Common Causes of Septic Tank Backup There are many reasons that could behind septic tank backup. Some causes are easier to identify than others which is why ...