Sea Chests

    Prevent Biofouling with Ultrasound

    Prevent biofouling with ultrasound in sea chests and reduce maintenance costs.

      • Improve the efficiency of the system
      • Reduce fuel consumption
      • Easy installation

    How ultrasound prevents biofouling

    Improve the pumping efficiency

    Sea chests are a hotspot for biofouling, because of the seawater that is pumped in through the sea chest gates.

    Biofouling on sea chests can cause the spread of aquatic organisms such as microorganisms, plants, algae and animals in new environments. Currently, the only way to minimise biofouling effectively on sea chests is to remove it from the vessel in dry-dock. However, this process is expensive in both money and time, and therefore another solution to prevent biofouling is favourable.

    LG Sonic Industrial Line product picture

    Biofouling growth

    Biofouling on sea chests is the accumulation of microorganism, plants, algae and animals. Sea chests help to increase the efficiency of pumping seawater on board, to provide reservoir water of ballast. To prevent the entry of large pieces of rubbish, sea chests are protected by grates. Therefore, the internal area of the sea chest may only be accessible when the vessel is in dry-dock. Biofouling on the internal surfaces of a sea chest may reduce the pumping efficiency of water on-board a vessel, and in extreme cases it might cause the complete blockage of pipes.

    Reduce dry-docking

    The current in-water removal or treatment of biofouling consists of chemicals which are harmful for the environment. Due to strict water quality regulations in some areas- the use of in-water treatment is prohibited. Another process to minimise biofouling from sea chests, is to remove it from the vessel in dry-dock. Nevertheless, this process has several limitations including; expense, duration and reliance on the availability of suitable dry-docking facilities. To remove biofouling from sea chests, ultrasound can be used which is an in-water treatment that is not harmful for the marine life, and has no side effects on the anti-corrosion layers.

    Which Product do I need?

    Depending on the length of the water surface we offer different variations of our products. Please contact us for a solution that fits your specific needs.

    LG Sonic Industrial Line

    Control Algae and Biofouling with the LG Sonic Industrial Line

    Control algae and biofouling in industrial applications

      • Reduce chemical expenses
      • Control biofouling and algae effectively
      • Easy installation and maintenance
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    Improve the efficiency of the system and reduce fuel consumption

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    We offer Worldwide Delivery

    For more information about the LG Sonic products, a quotation or a free installation advice please contact us. When possible, we will forward your request to a local distributor.


    Contact information

    • LG Sonic B.V.
    • Heliumstraat 7
    • 2718 SL Zoetermeer
    • The Netherlands