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Backflow prevention device - (DAR) and water meter

Backflow prevention device - (DAR) and water meter

Dispositif anti refoulement – (DAR) et compteur d’eau

Backflow prevention devices (BPDs) and water meters are key elements in ensuring the safety and optimum management of water distribution in residential and commercial premises. Often underestimated, they are essential to prevent damage caused by backflow and to regulate water use. In this article, we describe backflow prevention devices and how they work, as well as the vital role of water meters in monitoring water use and identifying leaks.

Backflow prevention devices (DAR)

Backflow prevention devices or DARs are designed to block unwanted water from flowing back into the drinking water distribution system. Backflow can occur when there is excess pressure in the system, such as when the main water supply is cut off, or during heavy rainfall. In the absence of a good DAR, there’s a risk that contaminated water will seep into the clean water circuit, posing a danger to public health.

DARs are usually based on single-channel mechanisms or non-return valves. These systems allow water to flow in one direction only, thus preventing any unwanted backflow. They are installed in key areas of the plumbing network, such as drain pipes, washbasins and drainage systems, to provide complete protection against reverse flow.

The Essential Role of the Water Meter

In addition to DARs, water meters are indispensable devices in the management of water distribution. These devices quantify the volume of water used by a household or in a building, and are essential for accurate billing of water consumption. Water meters also help identify leaks by observing unusual fluctuations in water use.

With the evolution of technology, more and more water meters now include advanced options, such as remote reading and control. Water suppliers can then monitor consumption in real time and directly detect potential anomalies, such as leaks or misuse.

Backflow prevention devices and water meters are key elements of any water distribution network. A good understanding of their mechanism and role enables building owners and administrators to ensure the safety and performance of their plumbing systems. These systems help to protect public health and water resources, and reduce the costs associated with excessive use or leakage losses.

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