One common issue requiring sewage pipe unclogging is scaling that forms during pipe use, narrowing the inner diameter and hindering normal wastewater discharge. These two common scenarios (scaling and minor blockages) can usually be easily resolved by using pipe unclogging machines, pipe unclogging granules, or replacing the pipe if all else fails.
However, if cement or other construction debris enters the pipes during renovation, it becomes extremely difficult to unclog. Very few professionals can handle such cases effectively, resulting in significantly higher costs.
In practical operations, the largest workload lies in municipal pipe unclogging. These pipes have more complex usage conditions, and the hazards caused by blockages are more severe. Municipal pipe unclogging typically relies on high-pressure cleaning trucks, with higher performance requirements for the trucks as the pipe diameter increases.
Common high-pressure cleaning trucks seen on roads generally handle pipes with an inner diameter of up to 500 millimeters. For pipes with an inner diameter of 600 millimeters or even 800 millimeters and above, such standard trucks are largely ineffective—ultra-high-pressure cleaning trucks are required for unclogging.
To fundamentally solve the problem, all sludge inside the pipes must be completely removed, which necessitates equipment such as sludge cleaning machines.