JSC ,,Hidrum’’ specializes for various water management jobs :

  • Suction and backhoe dredging in rivers, canals, harbors, lakes and coastal waters
  • Dredging in areas, where there is water traffic
  • Dredging in places where it is difficult or impossible to work with other machinery (wetlands, shallow waters, shorelines, industrial pools, under bridges, in tunnels etc.)
  • Where versatile dredger is needed, which can both pump and excavate
  • Where it is not feasible to mobilize several one-purpose machines (cutter suction dredger, backhoe dredger, tugboat, assembly cranes)
  • Where pile driving in water or on the shoreline is needed
  • Where vegetation disturbs conventional dredgers
  • Where vegetation has to be removed
  • Environmental dredging


The multipurpose dredger can complete most jobs at the worksite on its own. It excavates pumps and drives piles.


Watermaster can do backhoe dredging with a backhoe bucket or with a rake. It can remove floating or rooted vegetation, harmful stones and trash from the bottom. With the backhoe equipment it can build discharge areas for suction dredging, when they are located near the shore. Often the bottom needs to be cleaned by backhoe work before the pumping.


By suction dredging Watermaster can pump the soil through a pipeline to a discharge area, which can be located up to one and a half kilometres away. In this process the soil is mixed with large amounts of water, 80-90 % of the total volume. In the discharge area the solid substances are separated from the water. That is why suction dredging requires careful planning of the complete process, starting from the actual pumping work at the site to the separation of solids and removal of clean water after the separation process.

Watermaster saves the nature. By using its multipurpose technology it is possible to complete all the jobs at the site with one machine.


The machine arrives as a complete unit at the site on a truck or cruises there by itself on water. The technologies which use several "one-purpose" machines need costly preparation work, like loading and unloading assistance and mounting and dismounting.


The environmental Watermaster Classic offers economical high quality solutions for restoration work in various water environments.


Watermaster production plant has the internationally recognized ISO 9001 Quality certificate and ISO 14001 Environmental certificate from Lloyd's Register.