underwater service Articles

  • Water Treatment Plant: Benefits of Underwater Cameras

    Before fresh water can be made safe for human consumption it must go through a treatment process eliminating bacteria and any other elements deemed unsafe to drink. How does such a process occur and why is it relevant to us? We’ve written about the use of Deep Trekker remotely operated vehicles and pipe crawler systems in storm water systems, sanitation pipes, and water storage basins. A ...


    By Deep Trekker Inc.

  • Underground, underwater, under stress: Town of Longboat Key puts SmartBall tool to unusual pipeline condition test

    When much of your critical sewer pipeline lies buried under a bay of shimmering ocean water, the challenges required to assess its condition may seem daunting. That task faced the Town of Longboat Key, an affluent retirement community located on the barrier island of the same name off the west coast of Florida. Sensitive to environmental, health and safety issues, ...


    By Pure Technologies

  • How to Repair Pipes Quickly with Minimal Service Disruption

    If this has not yet happened to you, it will. The time is 5:30 a.m. and your guests are just beginning to wake when you get an emergency call informing you that a pipe has sprung a leak. What are your options? Will you shut down the water for a few hours, leaving your guests without water to brush their teeth, take their showers, or flush the commodes while you cut out and replace the bad ...


    By InduMar Products, Inc.

  • ArmorMax® is Solution for Bank Stabilization in NRCS Emergency Watershed Protection Program, Kissimmee, FL case study

    PROJECT SUMMARY Years of flash flooding and fluctuating water levels in the West City Ditch made for a dangerous scenario. The City of Kissimmee secured NRCS EWPP grant money to stabilize the ditch before catastrophic infrastructure damage occurred, but the budget was too small for full protection with conventional hard armoring. Propex worked with engineers to model slope stability in rapid ...

  • Views from Inside Pearl Harbor’s USS Arizona

    Deep Trekker ROVs Provide Survivor First Live View Inside USS Arizona This year marks the seventy-fifth anniversary of Pearl Harbor and the sinking of the USS Arizona. Unlike most other ships that were bombed on that fateful day, the steel battleship suffered so much damage that it was never salvaged. The final resting place of over 900 souls, the ship has remained submerged in a shallow ...


    By Deep Trekker Inc.

  • Effective Removal of Zebra Mussels with Amiad Screen Technology

    Introduction The zebra mussel, native to the Black and Caspian Seas, has spread in the past few decades to waterways throughout the world mostly via ballast water. Zebra mussels, when non-indigenous to the environment, pose a serious threat to intakes of facilities that rely on fresh and brackish surface water. The mussel colonies obstruct the flow of water through the pipelines eventually ...

  • Case study - San Francisco Public Utilities Commission (SFPUC)

    Service: Sahara Leak Detection Client: San Francisco Public Utilities Commission (SFPUC) Project Date: 2004 Type of Pipelines: Transmission Mains Diameter: 42 and 54-inch Pipe Material: Cast Iron Steel Length: 1.72 miles The San Francisco Public Utilities Commission (SFPUC) provides water to 2.4 million people in San Francisco, Santa Clara, Alameda and San Mateo ...


    By Pure Technologies

  • Company Introduces New Pipe Repair Products

    InduMar Products, Inc., based in Houston Texas, celebrates twenty years of providing pipe repair and rehabilitation solutions to their industrial and marine customers. Well known for their versatile STOP IT® Pipe Repair System the Company also takes pride in offering custom solutions for many pipe leak, reinforcement and corrosion problems. The combination of sealant development and ...


    By InduMar Products, Inc.

  • Divers install eccentric plug valve in reservoir tunnel

    A team of specialist divers – working in a cramped, water-filled tunnel 20 metres beneath the surface of a reservoir – has just completed installation of an eccentric plug valve to control water flow.The valve and associated equipment has been supplied to United Utilities by Viking Johnson (http://www.vikingjohnson.com), a world leader in the supply of pipe joints ...


    By Viking Johnson

  • Hole Dug, Leak Found - City Of Ottawa Entrusts Smartball Platform To Look For Leaks In Tranmsission Main

    When your inspection task is to survey a critical pipeline for leaks, nothing is more satisfying than trusting your technology to predict the leak location and then standing by as the client excavates the area to find a flow of water within one meter of exactly where you said it would be. The above-described "leak-where-predicted" recently happened with the City of ...


    By Pure Technologies

  • Ocean science for sustainable development: Facts and figures

    Sarah Grimes explores why we need good ocean monitoring, how to get it, and why it still fails Small Island Developing States. Oceans are a critically important component of the Earth system, supporting ecosystem and human health. They regulate the weather and climate; are essential for producing freshwater; and soak up ...


    By SciDev.Net

  • Top 10 Reasons to Choose a Diaphragm Actuated Control Valve

    Every water system typically consists of piping networks that distribute water from a source or storage reservoir to the end users. This frequently requires miles of piping mains along with pumps systems and controls that all have to be monitored and controlled somehow. Whether this control is to regulate pressure, a level or a flow, this usually will require some form of a ...


    By Singer Valve Inc.

  • Indestructible Pumps for Clean Water

    Sulzer pumps are used in the production of drinking water in many cities around the world. The special qualities that these pumps possess can be seen at the Zurich Municipal Water Utility. There, the operators have to cope with rising land and energy prices and a challenging topography. A small water flea plays a major role in Zurich. It swims around in a container of drinking water with some of ...


    By Sulzer

  • Biofouling & Biomonitoring: Mussels help keep Mussels at Bay

    Untitled Document Dykes, shipwrecks, junk and just about anything else submerged in water is soon colonized by aquatic animals, particularly mussels. Unless something is ...


    By Sweco Nederland BV

  • ELECTRONIC WATER TREATMENT REDUCES FOULING AND CORROSION IN PIPELINES

    Increasing pressure loss in the pipeline is often caused by scale corrosion or product fouling of the internal surfaces. This condition slows transmission and distribution capacity, and can require more than just routine maintenance if it remains unaddressed. Interior corrosion, fouling and leakage in pipeline systems will adversely impact bottom-line operations. ...

  • Electronic water treatment reduces fouling in heat exchangers

    The deposition of material on heat transfer surfaces is called fouling which significantly impacts on the thermal and mechanical performance of heat exchangers. Fouling increases the overall thermal resistance and lowers the overall heat transfer coefficient of heat exchangers as well as impeding fluid flow, accelerating corrosion and increasing pressure drop across the heat ...

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