Main Sewer Clogging: Causes, Warning Signs & Replacement

Main Sewer Clogging: Causes, Warning Signs & Replacement

In your home, all your plumbing fixtures and drains connect to your main sewer line. Without the main sewer line, your entire house would flood with water and sewer gasses.

The sewer line is an important piece of plumbing. It is connected to your toilets, sinks, and bathtubs. Your home’s plumbing system relies on the main sewer line to handle wastewater and other sewage from your entire house.

Your main sewer line is leaking, and the gasses and water are backing up into your home. What should you do?  And what can you do when it has already happened?

In this article, I will discuss with you the main sewer clogging causes, and warning signs to take note of. and also when to call for repairs and replacement.

Main Sewer Clogging Causes

A lot of other products of human life activity are discharged through pipes. particles of dirt, hair, and wool accumulate inside the pipes. Gradually, there are so many of them that the sewer becomes clogged.

Here are the most common causes of sewer clogging:

Draining of Greasy and Fatty Substances

Fat deposits (or organic plugs) appear during the operation of the sewer system. As a rule, they appear when you wash dishes, pans, pots, etc. Several times a day. The rest of the food is carried away by water into the sewer system.

Grease builds up inside the pipes. As a result, sooner or later, a fatty plug appears. The permeability of the pipes becomes less. And sewer clogging is inevitable.

Sagging Sewer Line

You cannot avoid sagging sewage pipes since they develop over time. When a pipe section sinks as a result of ground or soil conditions, the pipe is said to be sagging or bellied.

The sewer line section that is sagging will begin to collect waste causing blockages. This stops the water from draining, leaving the sewage pipe backed up.

Hair Plugs

Hair is a lot of trouble. Especially in those sewerage drains that come from bathrooms and shower rooms. To prevent traffic jams from the hair, it is necessary to organize a barrier that will not allow the hair to enter the sewer.

Damaged Sewer Pipes

The following are the causes of damage to sewer pipes:

  • Physical damage to the sewer pipe due to excavation for road construction, underground utilities, or other construction projects.
  • Pipes have corroded over time, causing them to collapse or break.
  • Joints with leaks where the seals between pipes open, allowing sewage and water to escape.

The sewage can’t drain through the system if sewer pipes are damaged or burst for any reason. which causes frequent backups.

Overgrowth of the Sewerage

This problem manifests itself in pipes made of steel and cast iron, which have been in operation for a long time. Roughness forms inside these pipes, which cling to threads, hair, and other debris. They grow and form a cork. It also accumulates fat.

It is possible to carry out preventive cleaning of the sewer system made of steel and cast iron and rinse it. But, in such cases, other measures are more drastic. We are talking about the need to replace such pipes with metal-plastic ones.

If you do not carry out preventive washing, then the clearance in the pipes made of cast iron will narrow. As a result, the throughput will also decrease. If you do not take proper measures, do not be surprised when the work of the sewer system stops completely. Then you will need repairs.

Debris Flushed Down the Toilet

It’s critical to understand what you can and cannot flush down the toilet. As long as you want to keep your plumbing system functioning. Don’t use your toilet as a trash container. Make sure that toilet paper and human waste are the only items you flush down the toilet.

Pipe Clogged with Tree Root

Tree root infiltration is one of the major reasons sewers become clogged. Tree roots can get into the sewer line through breaks in the pipe or cracks. and as they grow, they can block the pipe which can cause a backup.

The pipe might even break in some instances from the tree roots. The nutrients and moisture in the sewer line are attractive to tree roots, which can grow and spread. Make sure that no tree roots are encroaching on your sewer line if you have trees on your property. It’s important to have them inspected frequently.

Warning Signs of a Clogged Sewer

When it comes to your home’s main sewer line, you want to make sure that it is functioning properly. If there are any warning signs that the line is starting to become clogged, you should take action. Here are some of the most common Main Sewer Clogging Warning Signs:

  • Water backing up into your sink or tub drains.
  • Water spills out from around your toilet.
  • Slow drains throughout your home.
  • Gurgling sounds coming from your drains.
  • Foul smells coming from your drains.
  • Clogging of many fixtures.

If you’re experiencing any of these sewer-clogging warning signs, don’t delay in calling a professional plumber. The sooner you get help, the less damage your home will sustain.

Sewer Line Repair and Replacement Options

If your main sewer line is clogged, it can be a big problem. A clogged sewer line can cause your toilet to back up, your sink to overflow, and your shower to drain slowly. If you have a clogged sewer line, you may need to have it repaired or replaced.

You should contact a professional plumber. A plumber can help you determine if you need to have your sewer line repaired or replaced. If your sewer line is repairable, the plumber will clear the blockage and make any repairs.

If your sewer line is not repairable, the plumber will recommend that you have it replaced. To diagnose the problem, a video inspection is a popular and efficient method.

There are a few different ways to repair a clogged sewer line. One is to use an auger or plumber’s snake to clear the blockage. This can be effective if the blockage is not too far down the line.

Another option is to have a professional perform a hydro jetting procedure. This involves using high-pressure water to clear the blockage. Hydro jetting is often the most effective way to clear a clogged sewer line.

If your sewer line is damaged, it may need replacement. This is a more extensive repair that will need a professional plumber. There are two main options repair and replacement of the damaged sewer line:

Traditional sewer line repair:

Traditional sewer line repairs need digging up the street to remove damaged portions of the pipe. Which can be an expensive and time-consuming process. If you have a blocked sewer line, you may need to dig up your driveway or sidewalk for repairs. You will also need to call in a plumber if the repair requires replacing any part of your sewer line.

Trenchless sewer line repair:

A trenchless sewer repair is a more cost-effective way to get rid of clogged pipes without having to dig up your entire lawn. A trenchless sewer repair uses smaller, flexible pipes that are installed without having to dig up any part of your property. This means that you won’t have to call in a plumber or pay extra costs for digging up your yard.


As sad as it sounds, the simple truth is that you can’t live without your main sewer line. This is why it’s so important to check your main sewer clogs and replace them before they cause any serious damage. The preliminary warning signs of a main clog are easy to identify.

If you’re experiencing these problems on a somewhat frequent basis, then you should contact a plumber to check things out for you. There’s no sense in waiting until you’ve got a major backup in your home.

To get your sewer line inspection, repair, and replacement in Cartersville, GA, and other surrounding areas Contact Thompson Plumbing online or call 770-256-1324 today!