A sewer blockage in an apartment rarely occurs suddenly. In most cases, the problem accumulates gradually: grease, food debris, hair, soap scum and small household debris settle on the inner walls of the pipes. Over time, the passage narrows, the water begins to drain more slowly, unpleasant odors appear, and then the system completely ceases to cope with the drainage of wastewater. Many residents try to fix the problem themselves using chemicals or a plunger, but without understanding the cause, this only gives a temporary result. To avoid serious accidents and expensive repairs, it is important to understand what exactly causes blockages in the apartment and what factors most often lead to problems with pipes.
Why do sewerage systems in apartments become clogged most often
One of the main causes of blockages is improper use of plumbing fixtures. This happens especially often in the kitchen, where grease, food debris, coffee grounds and other contaminants regularly end up in the drain. Even if the water visually drains normally, a dense coating gradually forms inside the pipes. Fat settles on the walls, small particles of debris stick to it, after which a dense plug is formed. The older the pipes, the faster the deposits accumulate.
In the bathroom, the most common causes of clogs are hair, animal hair, soap and hygiene products. Hair easily clings to internal roughness of pipes and forms dense clumps that trap other debris. The problem develops especially quickly in siphons and bends of the system. If the pipes have a slight slope or were installed incorrectly, the rate of accumulation of contaminants increases several times.
An equally common cause is the entry of objects into the sewer that are not intended to be flushed. Wet wipes, paper towels, pet litter, cotton swabs, and even leftover construction mixtures are often thrown down the toilet. Unlike ordinary toilet paper, such materials do not dissolve well in water and can create dense blockages not only inside the apartment, but also in the riser of an apartment building.
The condition of the sewer system itself has a serious impact. In old houses, pipes may be partially destroyed from the inside due to corrosion and many years of use. Debris is retained faster on a rough surface, and the internal diameter of the pipes gradually decreases. As a result, even a small amount of dirt causes poor water drainage.
Sometimes the problem occurs due to installation errors. Incorrect pipe angles, a large number of turns, the use of the wrong diameter or poor-quality connections create conditions for constant blockages. Such problems are especially
