Common Causes of Septic Tank Backups and How to Prevent Them

It's easy to forget about your septic system until there's a sewage smell indoors or sinks and tubs start draining slowly. The good news? These issues are often preventable. With some planning and professional support, you can keep your septic system running efficiently and reliably.

What Causes Septic Tank Backups?

Many things can force sewage to flow back into your property. Here are the typical causes of septic tank backups and some tips for preventing them:

1. Infrequent Pumping

Solid waste accumulates in septic tanks over time. When the system gets too full to take any more, sewage water is forced back through the pipes and into your building.

Prevention tip: Get your system pumped every three to four years for the best results.

2. Flushing the Wrong Things

Your septic tank is meant to break down organic waste and toilet paper. If you flush items that don't break down easily — like grease, paper towels, wipes and feminine products — they get stuck in the pipes or pile up in the tank. Over time, these items create a blockage that prevents wastewater from flowing through your system.

Prevention tip: Only flush human waste and septic-safe toilet paper. 

3. Tree Root Intrusion

If there are trees or shrubs growing too close to your tank or drain field, their roots can make their way into tiny cracks or joints in the pipes. Once inside, they can block or crack the pipes.

Prevention tip: Only plant trees and large shrubs far from your septic system. You can also have a professional take a look to make sure roots haven’t made their way into the system if you already have vegetation nearby. 

4. Oversaturation From Rain or Flooding

Your drain field can't absorb water if the soil is saturated by heavy rainfall or flooding. With nowhere else to go, wastewater might back up into your home or pool on the surface. 

Prevention tip: Direct your gutters and downspouts away from the septic area. During very wet periods, try to reduce water usage in the home to ease the load on your system.

5. Improper Plumbing Installation

Things like poor pipe slope, incorrect tank placement or badly connected drain lines can cause waste to sit in the pipes and clog them or flow back into your home.

Prevention tip: Always hire experienced professionals when installing or modifying your septic system. If your system is new and you're noticing frequent issues, call a reliable servicer to rule out any installation problems.

Get Professional Septic Tank Backup Solutions

At Bolton Environmental, we simplify septic tank cleaning and maintenance with our reliable and responsive team. We're here to help whether your system is due for a routine cleaning or you need emergency septic tank services.

Schedule a service online today or call us to learn more about how to prevent septic tank backups.