pipe leak Articles

  • Leak behaviour in pressurized PVC pipes

    The correct definition of the leak law, i.e. the relationship between the leak outflow, the total head at the leak and other relevant parameters such as the pipe material, can seriously affect the accuracy of the numerical models used for the management of water distribution systems, either if they are used to forecast the leakage reduction by pressure management or to locate and size the leaks ...


    By IWA Publishing

  • Evaluating the pressure-leakage behaviour of leaks in water pipes

    Much progress has been made over the last decade in understanding the behaviour of flow through leak openings with changes in water mains pressure. In particular it has been established that variations in leak areas with pressure is the main factor responsible for the range of leakage exponents observed in practice, and several numerical and experimental studies have investigated this ...


    By IWA Publishing

  • Leak detection by inverse transient analysis in an experimental PVC pipe system

    Leakage reduction in water supply systems and distribution networks has been an increasingly important issue in the water industry since leaks and ruptures result in major physical and economic losses. Hydraulic transient solvers can be used in the system operational diagnosis, namely for leak detection purposes, due to their capability to describe the dynamic behaviour of the systems and to ...


    By IWA Publishing

  • Leak detection by inverse transient analysis in an experimental PVC pipe system

    Leakage reduction in water supply systems and distribution networks has been an increasingly important issue in the water industry since leaks and ruptures result in major physical and economic losses. Hydraulic transient solvers can be used in the system operational diagnosis, namely for leak detection purposes, due to their capability to describe the dynamic behaviour of the systems and to ...


    By IWA Publishing

  • An electromagnetic-based method for pinpointing leaks in buried pipes: a practical validation

    In this paper, a time domain reflectometry (TDR)-based solution for detecting water leaks in underground pipes is described and experimentally validated. The proposed method strongly reduces the inspection time that is typically required by traditional leak detection methods. In fact, it can successfully inspect pipes that are hundreds of meters long. In this work, two different configurations ...


    By IWA Publishing

  • Small Leaks Matter

    In the final part of the leak detection series, we explain why locating small leaks is and important part of a water loss management strategy. To see the first post in the series that outlines the problem of water loss in North America,  ...

  • Small leaks matter

    In the final part of the leak detection series, we explain why locating small leaks is and important part of a water loss management strategy. To see the first post in the series that outlines the problem of water loss in North America,  ...

  • Leaking Refrigerators - Sorted

    FridgeFree has been proven to eliminate the problem of leaking refrigerators by eradicating the gel that blocks the drain pipes leading to the floods. The natural solution to refrigerator gel blockages; improving customer experience and revenue protection. Features: Discretely installed on the affected drain line Disrupts the resident bacteria from producing the ...


    By Cleveland Biotech Ltd.

  • Experimental investigation of leak hydraulics

    In recent decades the hydraulics of leaks, i.e. the definition of the relationships linking the hydraulic quantities in pipes with leaks, has received increasing attention. On the one hand, the definition of the relationship between the leak outflow and the relevant parameters – e.g. the leak area and shape, the pressure inside the pipe and outside the leak, and the pipe material ...


    By IWA Publishing

  • Intake Pipe Repair

    Major problems can cause catastrophic damages to a facility’s operations. The accumulative cost of: repairs, labor, and downtime can add up. This 24 inch diameter intake pipe, located at a U.S. Power Plant, was leaking above the ground just below the disc valve. The plant’s maintenance engineers needed a proven, reliable and economical solution to fix this ...


    By ENECON Corporation

  • An Introduction to Pipe Plugs

    Pipe Plugs – sometimes called Pipe Stoppers, Balloons, Cushions, Bungs or Balls – are devices that can be inserted into a pipe, inflated with air and thereby seal the pipe for repairs, inspection and/or leak testing.Plugs are usually constructed of vulcanized rubber reinforced with fiber cords. They have an inflation point for connecting to a source of pressurized air and attachments for moving ...


    By PLUGCO

  • Leak-before-break in cast iron mains: a failure analysis of a catastrophic pipe burst on Harris Street, Sydney

    This article analyses the failure of a 500 mm-diameter cast iron (CI) water pipe that catastrophically fractured in Sydney in 2013. According to metallurgical analysis and finite element simulation, a longitudinal pre-existing crack initiated from the adjacent bell-joint and eventually propagated to a critical length in the pipe barrel over a certain period. There was evidence of leakage prior ...


    By IWA Publishing

  • The future of leak detection starts today

    For many water engineers the day in the office begins with a look at the screen. They can analyse the results of the nightly measurements of their fresh water pipelines in a few minutes and make important decisions for the day. Are there any new leaks in the system? Using the information found, the water engineer can send his workers to precisely those points that the leak detection system has ...


    By Gutermann AG

  • The quick and easy solution for pond leaks

    Are you tired of trying to fix that pond leak. Tried product after products For over 30 years ponds and fountains have been coated with epdm liners and have been seen as the only solution for pond repair. Many people are not aware that there is a liquid version of epdm rubber that has been specially formulated for fish friendly ponds. This one coat application has been the solution for thousands ...


    By Pondpro2000

  • Preventing & Thawing Frozen Pipes

    A “how-to” guide on preventing and thawing frozen pipes. As temperatures drop below freezing around the country, it’s important to be informed of the cold weather’s effect on your water pipes. When temperatures are below freezing, pipes in unheated areas are subject to freezing causing messy, and often expensive issues. Just one burst pipe running at 4-8 ...


    By WaterSignal

  • Investigation and risk assessment of a diesel leak: confidential

    Project: Emergency Investigation of a Fuel Leak Client: Confidential infrastructure management company Services: Rapid site characterisation and risk assessment Summary: Detailed risk assessment was used to quantify the environment risks pose by a fuel leak and avoid unnecessary remediation ESI was commissioned to ...


    By ESI Consulting Ltd

  • Residential Sewer and Drain Pipe Line Repairing by Pipe Bursting Method

    One responsibility a homeowner must accomplish is the regular maintenance and repairs around the house. The scale goes up according to how pressing the problem is. Decisive action must be done for emergency situations, especially when it comes to sewer line emergencies. As soon as you notice the pipes leaking or backing up, you’ll need to immediately have it inspected and repaired. If not, ...


    By Tric Tools, Inc.

  • Case study - Dallas Water Utilities - Leak Detection

    Service: Sahara Leak Detection Client: Dallas Water Utilities (DWU) Department of Public Works Type of Pipeline: Raw Water Transmission Main Diameter: 108-inch Pipe Material: PCCP Length: 7.3 miles The City of Dallas Water Utilities (DALW) currently draws its raw water from six sources: the Elm Fork of the Trinity River and Lakes Ray Roberts, Lewisville, Grapevine, Ray ...

  • 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 ...

  • Installing and Gluing Flexible PVC Pipe

    Installing and Gluing PVC Flexible (Flex) Pipe In order to get a proper bond and create a full, permanent seal when installing PVC Flex Pipe we have several suggestions. If you abide by these simple instructions you can minimize problems, leaks, and system failures! Ensure the pipe is clean and dry. Wipe away any dirt or dust and water. Use a PVC Primer on the ...


    By Red Flag Products

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