Water / Wastewater 47 Changing the Economics of Leak Detection


Affinity Water, who supply water to 3.6 million people in south-east England, has partnered with HWM to target significant reduction in leakage rates using PermaNET+ fixed network telemetry.


“Using the HWM PermaNET+ solution, we can continuously monitor 25 per cent of our network, identifying leaks in a matter of hours, rather than the days it takes using conventional techniques and technologies,” said Drew Ritchie, managing director of wholesale operations at Affinity Water.


Affinity already uses HWM datalogging technology to monitor its network’s performance, but the addition of PermaNET+ will significantly enhance leak detection across the network.


PermaNET+ represents the next stage in the development of noise logging. Data generated by the noise logger is automatically sent to the user, removing the need to visit sites to carry out data collection. Data transmission is achieved through a combination of GPRS cellular communication or SMS. The unit also sends an audio file for remote monitoring and correlation to localise the leak position. PermaNET+ is located entirely below ground, making it less intrusive and more practical for large-scale deployment.


These features are critical to the long-term leakage reduction plan of Affinity Water, which has set ambitious targets for improvement of its network. “Of all the UK water companies, at Affinity Water we’ve set ourselves the largest percentage leakage reduction over the current five-year [AMP6] planning period,” explained Drew. “We’re achieving this with HWM’s PermaNET+, challenging industry thinking and methodologies to change the economics of finding leaks.”


By permanently monitoring water network infrastructure without extensive site visits, PermaNET+ identifies leaks more quickly than traditional methods and allows for rapid deployment to fix any leaks that do occur. This significantly reduces both water loss and the cost of identifying leaks within a water network.


The programme will be completed in May 2017, with the installation of 20,000 PermaNET+ systems. This represents a long-term commitment to improved leakage reduction from Affinity Water, as Drew explained: “We’re looking forward to working with HWM over the next 10 years to enhance the system and use leakage information in new and innovative ways. Our customers deserve the best. Together, we will meet the challenges defined in our business plan.”


Diver Remote Groundwater Monitoring Technology This next generation of the SDI-12 interface for Divers is part of


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Van Essen Instruments’s Diver remote groundwater monitoring technology. The Diver-SDI is a totally new design and replaces the Diver-DCX.


Some new features include: Major improvement (250 times) in power consumption from 25 mA to 100 µ A stand-by current, Compatible with the latest SDI-12 protocol version 1.4 released July 2016, The Diver-SDI has a built-in pressure and temperature sensor for measuring real-time air temperature and atmospheric pressure, Automatic barometric compensation of the Diver pressure readings. No need for post-processing the pressure data, Dynamic density compensation for accurate water levels in saline conditions when used with the CTD-


Diver. Accurate water levels when water density varies due to salt content, External power supply through the SDI-12 system. No internal battery required. The compact Diver-SDI can be mounted inside the well casing for long-term, uninterrupted use.


100 New Plum Mac R6 Data Logger


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Data is collected automatically by picking up a pulse from a flow meter or an input from another single device. Data is transferred to a central server for analysis once a day or more frequently if required via the integral GPRS modem.


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The MacR6 is internally powered and housed in a fully waterproof IP68 enclosure, making it ideal for remote areas where power is not available and where the meter will be exposed to harsh weather or installed submerged. It also has a local display allowing the data to be viewed at the measuring location.


A fantastic feature of the MacR6 is its simplicity in installation. It is programmed via Bluetooth with free downloadable Android applications using the OptoBTEx optical head allowing you to simply connect to the device without the need for any tools and set all the required parameters. There is an additional free Android application for reading the data from the meter allowing the user to view data at the site.


The MacR6 can be used to identify where water is being used inefficiently and to monitor and meter at single or multiple site applications. It can be utilised in a wide range of applications including industrial, commercial and public sites where the consumption of water and analysis of data is required.


The new MacR6/N is also now available, with near field communication (NFC) technology to program and read the device and also has mounting options to fit directly on to water meters of leading manufacturers including Itron, Diehl and Sensus. This provides a simple, economical and compact method of recording water consumption with ease of fitting and programming and with the ability to view and analyse data anywhere with an internet connection.


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Now available from Bell Flow Systems, the MacR6 is a user friendly, low cost solution for monitoring water consumption and pressure within water distribution networks and many other flow metering applications.


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http://industry.jumo.info Solutions for water and wastewater engineering


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Optimal water quality requires reliable technology. Don‘t accept any compromises when it comes to precise as well as safe measurement and control technology that is especially customized for hygienically sensitive areas. Count on 65 years of quality, a high level of commitment, and outstanding industry expertise.


7886ad@reply-direct.com www.envirotech-online.com IET May / June 2017


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