There are many manufacturers, but only one market leader - why is that so?

Reason No. 1:

Use of quality waste water submersible pumps. Water pumps must be able to operate 24 hours a day and 30 days a month, often for months. Hydropowerpumps from HÜDIG can do this. These are so-called waste water pumps, which are also able to pump sandy water almost wear-free. The material combination of the impeller and diffusor used is specially designed to meet this requirement. The selected design of the closed impellers enables optimum efficiency and ensures lower energy costs, thus contributing to the saving of resources. The maintenance effort is low. The seal can be checked when not dismantled and the impeller can be readjusted using the quick adjustment feature.