Clogged Drains and Sewers: 5 most Common Causes and how to Solve Them
A functioning drain and sewer system are essential for comfortable living. However, when a blockage occurs, it can lead to inconveniences, odors, and even serious damage. In this blog, we’ll look at the five most common causes of clogged drains and sewers and advise you on how to effectively address these situations.

- Accumulation of Fats and Oils
- Problem: Pouring fats and oils down the kitchen sink is one of the most common causes of pipe blockages. The fat solidifies and gradually narrows the flow.
- Solution: Never pour fat down the drain. Use separate containers for oil disposal. If a blockage does occur, professional drain snaking can help.
- Food Remnants and Hygiene Products
- Problem: Food scraps, wet wipes, cotton swabs, or paper towels don’t belong in the drain, but they often end up there.
- Solution: Use drain strainers and be careful about what you flush. In case of a blockage, professional intervention is often necessary.
- Soap and Hair Deposits
- Problem: In bathrooms, the main culprits are hair and soap deposits that gradually get caught in the trap.
- Solution: Regular cleaning of traps and protective grids significantly reduce the risk. If water doesn’t drain, it’s time for mechanical cleaning.
- Tree Roots in the Sewer
- Problem: In exterior areas, tree roots can grow into older pipes and cause serious blockages.
- Solution: This problem requires professional inspections and root milling with special equipment.
- Poor Slope or Damaged Pipes
- Problem: Improperly laid sewage or pipe damage leads to frequent blockages.
- Solution: In such cases, a camera inspection of the pipe and subsequent repair or replacement helps.
Regular maintenance and proper household habits can prevent most problems with clogged drains. However, if the problem recurs or is serious, don’t hesitate to contact our Sofor Instal emergency service. We are ready to help 24/7 with professional equipment for drain snaking and sewer cleaning.
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