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Trees in an urban environment often have to cope with difficult ecological conditions. The ground is well trodden, rainwater carries contamination from the street down into the soil and the air is full of exhaust fumes. Often the soil used during planting is of poor quality. This means that the roots have to go a long way in their quest for water and nutrients. Their search often causes damage to drainage pipes and suchlike, which costs local authorities millions to repair. To prevent this, and at the same time to provide trees with the conditions they need for futher growth, the old nutrient-depleted earth must be replaced.

The soil around the tree can be removed by using excavators or by manual excavation. However this causes substansial damage to the delicate root system. Manual handling is expensive and time-consuming, since trees' root system are very sensitive and have to be dealt with correctly. Vacuum technology can be used for a variety of purposes within the field of ecology. The earth removed by suction can also be separated on site and, in many cases, reused.