Water Efficiency Database

Welcome to our resources search page. Please use the drop down menu to find recent Waterwise research and reports. This website also hosts the Water Efficiency Evidence Database, which is a repository of key research reports and paid for by UK water companies to support research and innovation.

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H2Eco Phase II (2009)

This report evaluates the project H2eco by Essex & Suffolk Water. It is the second in this series of water efficiency studies focusing on the installation of water-saving devices within domestic properties of Chelmsford, central Essex. Following an initial mailing of 7238 customers, audits were carried out for 1439 properties. The follow-up questionnaires found that more than 97% of respondents were happy with the amount of information provided in the workbook. Among the products, the miracle tap and children’s pack were considered to be most successful.

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ESW H2eco (2008)

This report evaluates the project H2eco by Essex & Suffolk Water. It is the first in this series of water efficiency studies focusing on the installation of water-saving devices within domestic properties of Chelmsford, central Essex. Participants were equally divided into two focus groups of metered and unmetered households. A total of 17 customers attended the focus groups, for which they received a £40 incentive. Reasons for participation included free equipment, environmental concerns (e.g. saving water), and to reduce bills.

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Reducing Water Wastage in the UK Annual Report 2007

Annual report on the activities of Waterwise and our partners, supporters and stakeholders

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Promoting Behavioural Change in Household Water Consumption (2007)

This literature review prepared for Smart Water summarises the principal theories relating to behavioural change relevant to water conservation in residential situations. It considers the application of the theories to actual behaviour change relating to conservation patterns and discusses examples from studies relating to the environmental sector. The policies and targets set by the government provide a base on which to examine techniques and tools available to encourage residential water users to conserve water and change their behavioural patterns. Specific studies on water saving in residential situations in Australia and elsewhere help to determine effective means of influencing conservation of water in Victoria.

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Excellence in Metering (2007)

This report provides recommendations on achieving excellence in utility metering. In general, the report is guided by three fundamental perspectives: 1) utility metering is a critical component of data driven sustainability initiatives, 2) increased awareness amongst the university community (either through billing and/or public data displays) will reduce energy and water use on campus; and 3) providing higher resolution data to the utilities staff will enable better identification of inefficiencies, malfunctions, energy/water waste, and opportunities for savings.

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Leakage Management Technologies (2007)

In this EPA and AwwaRF report on Leakage Management Technologies, technologies are discussed and trialled in North America. Researchers reviewed proactive leakage management technologies used internationally, with focus on the United Kingdom. The assessment phase identified the most promising leakage management technologies for pilot testing in North America. This report provides guidelines and tools on how to successfully apply the selected leakage management technologies based upon the pilot test results.

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Water and Energy Efficient Showers Project Report (2007)

This report summarises the findings of an interdisciplinary study, which examined the factors influencing water use of domestic showering. Sponsored by United Utilities, it analysed the physical performance of 20 showerheads or flow restrictors through laboratory work, customer experiences associated with installations of water-saving devices in 18 homes, and water-related energy use through a comparison of shower and bath tube performance. The findings were used to identify and reinforce potential strategies to encourage efficient use of water and energy of showers in homes.

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Water efficiency in the south east of England retrofitting existing homes (2007)

This study commissioned by the Environment Agency explores effective ways of increasing water efficiency in existing homes in South East England, building on findings of an earlier study. Following a pre-selection process, five demand management measures were analysed in-depth. Results indicate that average incremental social costs of retrofitting water efficiency measures compare favourably with the costs of traditional resource development schemes. The highest water savings would spring from a combination of different measures. The study also highlights that water savings increase significantly with only a small increase in cost if full subsidies and free installation are provided as part of the ‘package’.

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South West Water Explicata WET Report 1 (2007)

This report by South West Water analyses a water efficiency trial for households. The study comprised ‘Control’ and ‘Sample’ households, 109 and 430 respectively, which were offered a variety of water-saving devices for installation. The analyses prior and after device installation indicate percentage water use reductions of approximately 10% per household, which declined to 6% after seven months following the installation. The water- saving device percentage reduction was greater the larger the number of devices installed in the household.

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ESW Water Saving Toolkit (2007)

The purpose of this report is to summarise the findings of a customer engagement trial in Chelmford, Essex, which is part of Essex and Suffolk Water’s long-term water efficiency programme. 5,000 customers were mailed an application pack in 2006-2007, which included 19 water-saving products and services. Out of 5,378 customers contacted, 1,073 households completed the audit and were fitted with water-saving products and services. Based on information from meters and data loggers, the project resulted in average savings of 13.85 litre/property/day. This equates to a total saving of 0.015 Ml/day for the project study area.

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