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Any connection to Sydney Water’s pipelines, including fire services, necessitates safeguarding through the installation of backflow prevention devices. These devices are installed at the perimeter of your property or commercial premises to halt the flow of contaminated water into the public water supply. Backflow occurs when water from your property reverses its course into Sydney Water pipes, potentially leading to the contamination of the domestic water supply and posing health risks to consumers.
Backflow prevention devices are crucial in preserving water quality and should be installed to prevent the flow of contaminated water into the public supply. Typically, these devices employ one of three mechanisms to prevent the backflow of polluted water:
As per Sydney Water regulations, backflow prevention devices must undergo annual testing and should be tested upon initial installation.
Given the significant implications of water backflow into Sydney’s water supply, it is vital to have certified professionals install these devices and conduct yearly tests. Various types of premises that might necessitate these devices include:
Water backflow at an unprotected cross-connection can occur through two means: back pressure and back siphonage. Back pressure results from increased pressure downstream, causing a reversal in water flow. Conversely, back siphonage occurs when pressure builds up at a source, exceeding pipe pressure. For instance, during a water main shutdown by Sydney Water due to breaks or leaks, water can be siphoned back into the public supply. Backflow contamination due to back pressure and back siphonage can stem from various causes, such as:
These scenarios represent only a fraction of causes leading to water backflow into the system.
Potential ‘backflow risks’ imply that without adequate measures, you, your family, and your neighborhood could consume contaminated water.
Water backflow at an unprotected cross-connection can occur through two means: back pressure and back siphonage. Back pressure results from increased pressure downstream, causing a reversal in water flow. Conversely, back siphonage occurs when pressure builds up at a source, exceeding pipe pressure. For instance, during a water main shutdown by Sydney Water due to breaks or leaks, water can be siphoned back into the public supply. Backflow contamination due to back pressure and back siphonage can stem from various causes, such as:
These scenarios represent only a fraction of causes leading to water backflow into the system.
Potential ‘backflow risks’ imply that without adequate measures, you, your family, and your neighborhood could consume contaminated water.
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