water leak detection Articles

  • Gas monitoring and leak detection in underwater application for the offshore oil and gas case study

    With over 300 sensors and systems sold world-wide and over 35 scientific users publications, Franatech is market leader for underwater methane detection and monitoring. Franatech is a developer and supplier of sensors for detection of gases in water. The company has more than 15 years experience in subsea applications, working with all kinds of sensing technologies. Coming from a scientific ...


    By Franatech GmbH

  • Leakage–pressure relationship and leakage detection in intermittent water distribution systems

    Field investigations were conducted to identify the relationship between leakage rate and pressure in selected areas of the water distribution system of the Holy City of Makkah, Saudi Arabia. Noise correlators were used to detect leaks in areas where the water leakage exceeded 20% of the total water supplied. The leakage rate was found to be related to pressure raised to the nth power. The value ...


    By IWA Publishing

  • 2 - Welsh Case study (Significant MNF reduction in Cardiff DMA) Case Study

    In 2015, Welsh Water reported approximately 25% NRW in its operations. The leak detection methodology used to fight leaks was the traditional boots on the ground, which is known to be non-cost-effective as it is labor intensive and takes time to be completed in medium-large sized ...


    By Aquarius Spectrum Ltd.

  • Novelty detection for time series data analysis in water distribution systems using support vector machines

    The sampling frequency and quantity of time series data collected from water distribution systems has been increasing in recent years, giving rise to the potential for improving system knowledge if suitable automated techniques can be applied, in particular, machine learning. Novelty (or anomaly) detection refers to the automatic identification of novel or abnormal patterns embedded in large ...


    By IWA Publishing

  • 10 things you need to know about EPDM waterproofing membranes

    Waterproofing membranes or strips of EPDM rubber used on cladding, facades and for isolating joints around external window frames and doors of buildings, both commercial and residential. The rubber membrane works by keeping rainwater, damp and moisture ...


    By Russetts Development Ltd

  • Flowie saves Ontario property manager more than $5000 - Case Study

    EXECUTIVE SUMMARY Paul Kondakos is a real estate investor and the president and CEO of Realty Hub, an online community for “investors to communicate, network, share intelligence and insight” about real estate investment. After an undetected running toilet cost Paul thousands of dollars, he began looking for water sensor technology to prevent high water costs. He installed ...


    By Alert Labs Inc.

  • 9 handy thermal camera hacks for DIY and home improvement

    Below are 9 handy thermal camera uses for DIY home improvement projects. These time and money saving tips and tricks will give you peace of mind, providing you with behind-the-scenes intel before you ever lift a hammer (or a sledgehammer). Locating electrical work and pipes in the ...

  • Electrical Method

    Vertical Electrical Soundings - Designed and performed vertical electrical soundings (VES) for proposed landfilling sites, utilizing an electrical resistivity system to determine depth to the water table. ADEQ project. Electrical Resistance Tomography - Participated in the Leak Detection Monitoring and Mitigation (LDMM) Project that utilized Electrical Resistance Tomography (ERT) developed by ...


    By ECA Geophysics

  • Höljes Sweden Project - Case Study

    In 2013-2015 extensive work was made to increase the dam safety in Höljes. Improved monitoring was required to bring it up to today’s standards but due to the condition of the dam foundations and high downstream water level, installation of a traditional leak detection system was not possible. ...


    By HydroResearch

  • Transient frequency response based leak detection in water supply pipeline systems with branched and looped junctions

    The transient frequency response (TFR) method has been widely developed and applied in the literature to identify and detect potential defects such as leakage and blockage in water supply pipe systems. This type of method was found to be efficient, economic and non-intrusive for pipeline condition assessment and diagnosis, but its applications so far are mainly limited to single and simple ...


    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

  • Sensor placement for leak detection and location in water distribution networks

    The performance of a leak detection and location algorithm depends on the set of measurements that are available in the network. This work presents an optimization strategy that maximizes the leak diagnosability performance of the network. The goal is to characterize and determine a sensor configuration that guarantees a maximum degree of diagnosability while the sensor configuration cost ...


    By IWA Publishing

  • Property management company saves $100,000 with water flow sensor - Case Study

    SUMMARY Joanna Jackson is a Building Performance Specialist with Minto Apartments, an organization that manages 8,800 rental apartment units in seven cities across Canada. After relying on municipal water bills to manage water consumption and costs, Joanna installed the Flowie water flow sensor at 12 buildings and began receiving minute-by-minute water use data. A few months after ...


    By Alert Labs Inc.

  • AQUASCAN 610 nails a difficult leak on a long distance - Case Study

    Lawrence Kansas finds leak on KU Campus Introduction: In June 2018, the City of Lawrence, Kansas water department pinpointed a very small but significant, non-surfacing leak using GUTERMANN’s AQUASCAN 610 Leak Noise Correlator.  Public Works and Utilities received a call that there was an unusual amount of water infiltrating a storm sewer.  After ...


    By Gutermann AG

  • Detection of Minor Leakage in a Drinking Water Power Plant Pipeline

    Project in the South Tyrolean community Mals in Italy The final pressure test of a 2014 newly installed pipeline m a drinking water power plant in the South Tyrolean community Mals (Italy) showed a pressure loss out of range, which prevented the plant's commissioning. Thus the company MTA Messtechnik GmbH has been tasked to identify the reasons for the losses as quickly as possible ...


    By MTA Messtechnik GmbH

  • Yorkshire Water uses AQUASCAN TM2 for trunk main leak detection - Case Study

    Introduction After initial meetings about suspected leakage and NRW losses with Craig Needham and Piotr Kozeil from Yorkshire Water a trial was arranged to use the GUTERMANN AQUASCAN TM2 correlator. An initial location on an 18” Cast Iron trunk main was identified from Longwood Service Reservoir feeding ...


    By Gutermann AG

  • How to Read a Water Meter to Detect a Leak

    After examining your last water bill, you’re worried that you’re using too much water, or worse, you have a water leak in your home. And you’re not alone. According to the EPA, 10 percent of homes in the US have leaks that waste 90 gallons or more each day. ...


    By Alert Labs Inc.

  • Complex city structure in Taipei - 13 leakages detected - Taipei, Taiwan - Case Study

    In 2014, Leif Koch, DHI, and Ramböll partnered with the Taipei Office of the Trade Council of Denmark and the Taiwan Water Corporation for a pilot project to reduce water loss in Taiwan. These organizations sent a team of leakage engineers and operators to work at a test site on Chijin Island. ...


    By Leif Koch A/S

  • Permanet F Detects Leaks in Trévoux - Case study

    The city of Trévoux in eastern France has used Hydreka’s PermaNet F to detect leaks in their drinking water network, leading to a 20% decrease in minimum night flow after repairing fewer than half of the detected leaks.  20 PermaNet F ...


    By Hydreka SA - A Halma Company

  • Risk-based sensor placement methods for burst/leak detection in water distribution systems

    The optimal placement of sensors for burst/leak detection in water distribution systems is usually formulated as an optimisation problem. In this study three different risk-based functions are used to drive optimal location of a given number of sensors in a water distribution network. A simple function based on likelihood of leak non-detection is compared with two other risk-based functions, ...


    By IWA Publishing

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