What Are the Main Causes of a Blocked Sewer Line?


One of the biggest issues with sewer lines is sometimes not the problem itself, but determining what caused the issue and how to remedy it. When a sewer line is blocked, it can cause backups and slow drains to occur. There can also be sewer spills that are a nuisance to deal with. As a homeowner, it is important to learn what causes a blockage to occur and what you can do to prevent it from happening again.

3 Main Causes of Sewer Blockage


A clog is the most common cause of sewer line blockage. The main sewer line in your system can become clogged the same as your drain pipes. This will cause backups in your home that could potentially damage your foundation. If there is only one sink, tub, or toilet in your home that you are having issues with, there could be a clog in that particular drain. However, if every bathroom has the same problem, it is likely due to a clog in your main sewer line.

Clogs can be caused by the wrong items thrown into the toilet such as a toy or paper towels. They can also be caused by misuse in other areas of the home such as grease poured down the kitchen sink. Outdoor elements can cause clogs to happen as well if there are holes that allow dirt and debris to enter into the line. Fortunately, clogs can be removed by professional plumbers by use of hydro-jetting and other services.

Invasive Tree Roots

Tree roots are another common cause of sewer line backups. Even if there are no trees in the area above your sewer line, the roots from other areas, such as your neighbor’s lawn, could cause you to have a problem with your line.

Tree roots are an issue because they can grown into a pipe and cause holes, leaks, and blockage. They can also wrap around the sewer line and destroy it, requiring you to replace the line.

Broken or Collapsed Lines

If you have an older home that has a sewer line made with cast iron or clay pipes, they can break down over time much easier than the modern plastic or PVC pipes used today. This can cause a sewer line backup to occur due to broken, collapsed, or cracked lines.

How to Prevent Sewer Blockage

There are some things that you can do to help prevent a clog from forming in your sewer line. Such as:

  • Do not place napkins, facial tissues, or other items inside your toilet. Even if you do it every once in awhile, these items will not decompose as quickly as toilet paper and can create unwanted clogs.
  • Do not dump large quantities of food in your garbage disposal. This can cause the line to back up easily.
  • Never pour grease down the drain. Grease and fat used while cooking can harden inside your pipes, collect dirt and debris, and create a clog over time.

Contact Snowbridge Inc. Today for Help with Sewer Blockage

Snowbridge specializes in all types of wastewater services and underground pipe repair. The family owned and operated company has the knowledge and experience needed to help you remove unwanted clogs and debris from your sewer lines so that your home’s plumbing system runs efficiently once again. If you have noticed that your sewer system isn’t working as it should, be sure to give the experts at Snowbridge a call at 1-800-426-6827 for assistance. You also have the option to contact them on their website to schedule an appointment.

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