预防回流

Keeping water free of contaminants\r\n

Backflow is water that flows backwards into our pipes after a property has used it. It may carry contaminants that can harm people's health. That's why all connections to our water and recycled water pipes – including fire service connections – must be protected with devices for backflow prevention containment. Property owners are responsible for getting the right kind of backflow device installed.
\r\n

\r\n"}}" id="text-ba0d7add1f" class="cmp-text">

保持水不污染物

回流是在属性使用后向后流入我们的管道的水。它可能携带可能损害人们健康的污染物。这就是为什么必须通过设备进行预防回流的设备保护与我们的水和回收水管(包括消防连接)的所有连接的原因。财产所有人负责安装正确的回流设备。


How backflow occurs\n

Backflow occurs when water from a customer's property flows backwards into our pipes. This may carry contaminants that can harm people's health. Backflow is more likely to occur:

\n
    \n
  • if there's a drop in pressure in the main, for example during a main break
  • \n
  • if water pressure at the property is higher than at the main, for example if a pump is operating on the site.
  • \n
\n

Contaminants may enter the drinking water system through a cross connection caused by:

\n
    \n
  • faulty plumbing
  • \n
  • hoses submerged in buckets, tanks or pools.
  • \n
\n

Cross connections are unauthorised plumbing connections between 2 water sources that should be separate, for example a drinking water system and a recycled water or wastewater system.

\n"}}" id="ID01" class="cmp-text">

如何进行背流

当客户的财产中的水向后流入我们的管道时,会发生回流。这可能会携带可能损害人们健康的污染物。回流更可能发生:

  • 如果主要休息期间的压力下降,则
  • 如果该物业的水压高于主的水压,例如,如果泵在现场运行。

污染物可以通过以下造成的交叉连接进入饮用水系统:

  • 管道故障
  • 软管浸入水桶,坦克或水池中。

交叉连接是2个应该分开的水源之间未经授权的管道连接,例如饮用水系统和回收的水或废水系统。

防回流预防设备阻止潜在的污染水流回我们的水管。

受污染的水会带来严重的风险
污染物可能包括化学物质,油,细菌,泥浆和碎屑。


What backflow devices are\r\n

Backflow prevention devices stop water flowing back into our pipes. They have one of the following elements to stop water flowing backwards:

\r\n
    \r\n
  • a valve that only lets water go in one direction
  • \r\n
  • an air gap
  • \r\n
  • a break tank.
  • \r\n
\r\n

These devices are important as they protect our water quality, and the health of people using it.

\r\n"}}" id="ID02" class="cmp-text">

什么是回流设备

预防回流设备停止流回我们的管道。他们有以下元素之一,可以阻止水向后流动:

  • 一个只能让水朝一个方向流动的阀
  • 气隙
  • 一个断箱。

这些设备很重要,因为它们可以保护我们的水质以及使用它的人的健康。


What you must do\r\n

Property owners are responsible for getting the right kind of backflow device installed. If you're the property owner, you need to ensure:

\r\n
    \r\n
  • you have the right kind of backflow prevention device installed at your property
  • \r\n
  • the device is properly maintained. 
    \r\n
    \r\n
  • \r\n
\r\n

Assess the hazard rating 

\r\n

You must engage an accredited backflow plumber (a licensed plumber with a backflow accreditation) to assess your site's hazard rating. They need to assess the hazard rating every time site activities change. Tell them if your property has more than one connection to our water main. This may affect your hazard rating and the type of device the plumber must install.  
\r\n 

\r\n

Install the device 

\r\n

You must get a licensed plumber to install the right kind of device. You're responsible for ensuring your plumber sends us a certificate of compliance when they install high and medium hazard devices.
\r\n 

\r\n

Test the device

\r\n

Your accredited backflow plumber must test high and medium hazard devices when they're installed and every year afterwards.
\r\n 

\r\n

Send us the results

\r\n

Ensure your accredited backflow plumber sends us the results within 2 days of the test.

\r\n"}}" id="ID03" class="cmp-text">

你必须做什么

财产所有人负责安装正确的回流设备。如果您是财产所有人,则需要确保:

  • 您在物业上安装了正确的预防回流设备
  • 该设备可以正确维护。

评估危险等级

您必须参与认可的回流水管工(具有回流认证的许可水管工),以评估您的网站危险等级。他们需要评估每次现场活动发生变化时的危害评级。告诉他们您的财产是否与我们的水主有多个连接。这可能会影响您的危险等级以及水管工必须安装的设备类型。

安装设备

您必须获得许可的水管工才能安装正确的设备。您有责任确保您的水管工在安装高和中等危险设备时向我们发送合规证书。

测试设备

您认可的回流水管工必须测试高和中等危险设备W他们安装了母鸡,并且每年都会安装。

向我们发送结果

确保您经过认可的回流水管工在测试后2天内向我们发送结果。


What type of backflow device you need\r\n

Your backflow device must be suitable for your property's hazard rating. A hazard rating measures whether your property is a high, medium or low hazard to our water supply system. Your accredited backflow plumber will assess your rating. Examples of hazard ratings for different businesses are shown in the Australian Standard, AS/NZS 3500:1.
\r\n 

\r\n

Low hazard properties

\r\n

Owners of low hazard properties must get a non-testable backflow prevention containment device installed. Our 20mm and 25mm meters have a simple backflow prevention device in them. These are suitable for low hazard connections.
\r\n
\r\nYou must get a separate device installed if you have:

\r\n
    \r\n
  • a larger meter
  • \r\n
  • an unmetered water connection
  • \r\n
  • a high or medium hazard rating.
    \r\n 
  • \r\n
\r\n

Medium hazard properties

\r\n

Owners of medium hazard properties must get a testable double check valve assembly installed. 
\r\n 

\r\n

High hazard properties

\r\n

Owners of high hazard properties must get a registered break tank, reduced pressure zone or registered air gap installed.
\r\n 

\r\n

Metered standpipes

\r\n

If we've given you permission to use a metered standpipe on our pipes, your standpipe must have a testable double check valve incorporated into its design.
\r\n 

\r\n

Construction sites

\r\n

You need a backflow prevention device on water main connections you use for construction and renovation.

\r\n

If you're building more than a single standalone house, we consider it to be a high backflow hazard.
\r\n 

\r\n

Sprinkler and fire services

\r\n

If your property has separate sprinkler and fire services, you must get a testable double check detector assembly. It must be installed near where the water service enters your property or upstream of any booster assembly or off-take from the fire service. 
\r\n
\r\nIf your property has a window or wall drencher system, you must install a non-testable low hazard device.
\r\n 

\r\n

Unknown hazard rating

\r\n

If you don't know your site's hazard rating or don't get it assessed, we'll assume it's a high hazard. Owners of properties with unknown hazard ratings must get a registered break tank, reduced pressure zone or registered air gap installed.

\r\n"}}" id="ID04" class="cmp-text">

您需要哪种类型的回流设备

您的回流设备必须适合您物业的危险等级。危险评级可以衡量您的财产是否对我们的供水系统危害高,中等或低危害。您认可的回流水管工将评估您的评分。澳大利亚标准中显示了不同业务的危害评级示例,AS/NZS 3500:1。

低危险性能

低危险性能的所有者必须安装不可测试的防回流设备。我们的20mm和25mm仪表在其中有一个简单的预防装置。这些适用于低危险连接。

如果有:

  • 较大的仪表
  • 无数水连接
  • 高或中等危险等级。

中等危险性能

中等危险属性的所有者必须安装可测试的双止回阀组件。

高危险性能

高危险性能的所有者必须获得注册的断路箱,减小压力区或安装注册的气隙。

计量刻板

如果我们已允许您使用计量的立管在我们的管道上,您的立管必须在其设计中包含一个可测试的双检查阀。

建筑工地

您需要在用于施工和翻新的水主连接上预防回流设备。

如果您要建造一个独立的房屋,我们认为它是高回流危险。

洒水和消防服务

如果您的物业具有单独的洒水装置和消防服务,则必须获得可测试的双检查探测器组件。它必须安装在水服务进入您的财产或任何助推器组件上游或从消防部门越来越多的地方安装。

如果您的物业具有窗户或墙型枯燥的系统,则必须安装非检测的低危害设备。

未知危险等级

如果您不知道网站的危险等级或不对它进行评估,我们会假设这是一个很高的危害。具有未知危险等级的物业的所有者必须获得注册的断裂箱,减压区或已安装的注册气隙。


Who can fit your device\r\n

You must use accredited backflow plumbers and licensed plumbers. 

\r\n
    \r\n
  • An accredited backflow plumber must assess your site's hazard rating and test your backflow device. Search for an accredited backflow plumber
  • \r\n
  • licensed plumber must install your device. NSW Fair Trading licenses plumbers in NSW.
  • \r\n
\r\n"}}" id="ID05" class="cmp-text">

谁可以适合您的设备

您必须使用经认可的回流水管工和许可的水管工。


What we will do\r\n

We keep a register of all installed testable backflow prevention containment devices. We'll remind you when it's time to get your backflow device tested each year.
\r\n
\r\nWe audit a sample of installations to make sure they comply with Australian Standard AS/NZS 3500:1. If your installation doesn't comply with the standard, we'll send a notice asking you to repair, maintain, test or replace the device. 
\r\n
\r\nIf you don't comply with our backflow requirements or notices, we may:

\r\n
    \r\n
  • restrict your water supply
  • \r\n
  • disconnect you
  • \r\n
  • charge you any costs we incur to make your connection satisfy our requirements.
  • \r\n
\r\n"}}" id="ID06" class="cmp-text">

我们将要做什么

我们保留所有已安装的可测试预防封装设备的寄存器。我们会提醒您,何时该每年对回流设备进行测试。

我们审核安装样本,以确保它们符合澳大利亚标准为/NZS 3500:1。如果您的安装不符合标准,我们将发送通知,要求您修复,维护,测试或更换设备。

如果您不遵守我们的回流要求或通知,我们可以:

  • 限制您的供水
  • 断开你的连接
  • 向您收取我们所产生的任何费用,以使您的联系满足我们的要求。

Baidu
map