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Backflow occurs when water flows opposite to its normal or intended direction. Banjo Nominees is perfect in backflow testing
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What is backflow? Backflow is the undesirable reversal of the flow of water from its intended direction in any pipeline or plumbing system. Backflow is dangerous because it can allow drinking water in plumbing systems to become contaminated and unusable.
How can backflow occur? Backflow can occur two different ways, by backsiphonage and backpressure. What is Back Siphonage? When there is a sudden reduction in the water pressure in the distribution system, such as during fire fighting or when a water main breaks, water flow can be reversed. This can create a suction effect, drawing potential contaminates into the potable water distribution system.
What is Backpressure? Backpressure is created when pressure in a nonpotable system, such as in a recirculating system containing soap, acid, or antifreeze, exceeds the pressure in the potable system providing the makeup water. This can force the potable water to reverse its direction of flow through the cross-connection between the two systems. Potential contaminates can then enter the potable water system.
How can backflow be prevented? • Backflow-prevention devices stop these contaminants from entering the water system. • There are several different types of backflow preventers available : • Air Gap (AG) • Reduced Pressure Backflow Prevention Assembly (RP) • Double Check Backflow Prevention Assembly (DC) • Pressure Vacuum Breaker (PVB) • Atmospheric Vacuum Breaker (AVB) • Spill-Proof Pressure Vacuum Breaker (SVB)
Banjo Nominees has a team of highly skilled professionals working to provide superior standards of plumbing and gas expertise and customer service. We are members of master plumbers and licensed through plumbing industry commission. We specialise in the testing and maintaining of thermostatic mixing valves and back flow prevention valves.
Backflow Testing and Prevention Backflow testing maintenance is mandatory under legislation for the hygiene and prevention of contamination of water. Water Authorities are continuing to keep Melbourne’s drinking water safe with an audit of backflow prevention devices in the CBD and inner and western suburbs.
Many non-residential customers will be audited to assess the risk rating of a commercial property. An accredited plumber such as Banjo Nominees can confirm the risk rating of your property. Banjo Nominees will then supply the relevant Water Authority with the test results from each premise via a backflow device. Back flow valves are required to be tested every 12 months as per the governing water authority.
24/7 Emergency Commercial Plumbing Service Melbourne Tel : 03 9397 1111 Website : www.banjo.net.au