Active Leakage Control

Invisible leaks account for more than 90% of the total volume of real water losses. Read about how these critical issue are being dealt with.

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7 Articles

Recent advances in calculating economic intervention frequency for alc and implications for calculation of economic leakage levels

The global volume of Non-Revenue Water (NRW) has recently been conservatively estimated at 50 billion cubic meters/year, and valued at US$15 billion.

Practical experiences in applying advanced solutions for calculation of frequency of intervention with ALC- results obtained

The global volume of Non-Revenue Water (NRW) has recently been conservatively estimated at 50 billion cubic meters/year, and valued at US$15 billion.

Non-intrusive leak detection in large diameter, low-pressure non-metallic pipes-are we close to finding the perfect solution

An accurate water balance (water audit) is the foundation on which a water loss reduction strategy is founded. It is significantly more difficult to determine an accurate water balance if a large proportion of legitimate consumption is not metered.

New Leakage Detection Techniques using various Performance Indicators

Understanding and managing leakage in potable water distribution systems has always posed interesting and often difficult problems to the water supply authority. Many approaches to this issue have been developed in different parts of the world, some of which have been very innovative and successful.

An Economic Active Leakage Control Policy without a Performance Indicator is not a Myth

Development of quick and practical methods for calculating economic leakage levels in international situations has been a stated objective of the IWA Water Losses Task Force since 2001.

Accuracy Limitations of the ILI - Is it an Appropriate Indicator for Developing Countries?

Since the level of water losses from potable water distribution systems is one of the key efficiency issues, it would be expected that reliable performance indicators are used for benchmarking, international performance comparison or target setting.

Active leakage control in low pressure situations

Leaks make noise or acoustic sound because the pressurized water forced out through a leak loses energy to the pipe wall and to the surrounding soil area.