What Are the Main Causes of a Blocked Sewer Line?


The noxious smell of sewage. The sight of wastewater and what-not flowing out of your toilet. Possible health issues for you and your family.

No one likes a blocked sewer line. But how does it happen?

Common Causes of Blockages

Fats, Oils and Grease

What do you do with the fatty byproducts and oils used in cooking and after eating? Too often they go down the kitchen drain. Contrary to popular belief, some materials don’t exit the sewer lines; instead, they stick to the insides of the piping walls. The accumulation then leads to a blocked sewer line.


Households with young infants often don’t see the error in flushing down baby wipes and nappies down the toilet. The problem with this is that nappies swell up when soaked in water for a long time, and baby wipes do not disintegrate as easily as tissue paper. Do it enough and the sewer pipe will be totally clogged.

Foreign Objects

The most unusual things get flushed down toilets either intentionally or unintentionally. Case in point- jewels, watches and accessories could get knocked off and land into the toilet. Your kids feed their curiosity and think your toilet “eats” things, like toys, small items and school supplies. Plumbers may have discovered that some tenants treat their toilet as trash bins where they dump their leftover food.

Tree Roots and Leaves

Tree roots reach far and deep in search of moisture from wells and underground water or sewer systems. In short, they can enter the cracks and the spaces in-between your pipe joints and go from there. The roots may also wrap themselves around the pipe and crush it over time. When autumn comes, the massive amount of falling leaves can clog your drain lines and prevent it from working.

Collapsed Pipe

Pipes wear out and get weak over time, which leads to eventual collapse. Clay, cast iron and orangeburg pipes are more susceptible to developing leaks, cracks and corrosion as compared to PVC and plastic ones. The general rule is that the older the house (and sewer system), the more prone it is to collapse at one point.

Taking Steps To Clog Prevention

The best way to deal with a blocked sewer line is to not allow it to happen. With respect to the reasons outlined above, households should be aware of what things go down the sink, garbage disposal, the drains and the toilet. Put bathroom bins where you can dispose of the diapers, the tissues and the baby wipes.

Furthermore, new trees and shrubs should be planted well away from where you sewer lines lie. Before the roots completely choke your pipe’s flow, or before they collapse, you should contact a professional technician to have your sewer lines inspected and cleaned via hydrojetting technology.

Unblock Your Sewer Lines

Call Vietzke Trenchless to have your blocked sewer lines taken care of today. The company offers many services that are a fit for your needs and your budget. Their professional technicians ultimately give peace of mind by eliminating the source of your sewer line problems.


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