Drain drainage - you should know that

Drains are not maintenance-free, but must be constantly maintained. Why you need to wash them regularly and what to look for is explained in detail in this article. How often you should wash your drainage.

Need for rinsing

Simply installing drainages is not enough. Within a few years, they will lose their function when not serviced, and clogged drainage poses a high risk of serious water damage to the building.

The biggest risks for drainage are:

  • Ingrowth of tree roots
  • Erosion of the surrounding soil and


Sludge can almost completely overflow drainage over time, so it needs to be flushed regularly. Even growing tree roots can reduce the permeability of the drainage.

Frequency of rinsing

How often a drainage should be flushed, always depends on the local conditions. In general, however, it is assumed that a rinse should take place at least once a year.

Procedure for rinsing

The drainage of the drainage should always be carried out by a specialist company. Although the costs for this are usually higher, you can be sure that the rinsing is done professionally, and the rinsing process does not cause any damage to the drainage. In addition, it is ensured that the rinsing is also sufficiently effective.

Remove tree roots

Specialist companies can use high-pressure root cutters to remove even ingrown tree roots from a drainage so that they become permeable again. But the corresponding devices are required.

Pressure when rinsing

Drainages are always rinsed with high pressure. The hoses of specialist companies are usually specially designed, flushing ports are there both forward and backward. With the hoses, which can be moved forward and backward, even larger distances (more than 100 m) can be mastered while rinsing.

Choosing the right pressure is crucial. The water pressure on the one hand must be high enough to effectively remove all deposits, on the other hand low enough again not to damage the drainage. Spray nozzles from specialist companies work with a pressure of only 7 - 10 bar, but they clean very effectively. For this, pumps with high liter capacities (up to well over 100 l per min) are usually used.

Possible damage if the pressure is too high:

  • the water penetrates through the drainage pipe and damages the filter cloth
  • The high water pressure releases soil particles, which are then washed inwards
  • The soil particles are too much saturated with water on the outside and can get stuck in the shell and damage the surrounding structure of the drainage, the drainage thus works worse and worse

Tips & Tricks

From self-testing you can only advise against. The risk of damaging or not sufficiently cleaning a drainage tube is too high. In addition, with high-pressure cleaners with attached rinsing hose, only something can be achieved on the first few meters.

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