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What Is Water Backflow – Some Interesting Information by Plumber Sydney

Posted by on July 15, 2018

There are many different terms and words that are used in the plumbing industry. It is important that you, as a homeowner, have a very brief understanding of some of the basic terminology used by a plumber Sydney. This will help you tremendously when you have plumbing Sydney issues in your home or business. This article will explain what backflow is.

Explanation on what water backflow is by plumber Sydney

In its simplest form, Backflow occurs when water flows in the opposite direction to what it is expected to flow. The water is intended to flow in one direction and for a reason it flows in a different direction.

A sudden and unexpected drop in water pressure normally causes backflow. Some of the causes for this can be water main bursts, pipes freeze or unexpectedly high demand on the water system. This automatically creates a negative pressure in the water supply system.  When a backflow occurs, reduced pressure may allow contaminated water from the ground, storage or other sources to enter the system. One of the biggest concerns is that this allows drinking water to be contaminated via a cross-connection.

A properly installed and maintained backflow device will ensure water flows safely by automatically trapping water that begins to flow in the wrong direction.  This prevents water from a property being drawn back into the main drinking water supply and causing cross-connection.

A plumber Sydney will determine the type of backflow device that is required.

The risk ratings of a home or building will determine what type of backflow device will need to be installed.  Homes and buildings are classed as low, medium or high risk. A professional plumber Sydney who are an accredited plumber Sydney can confirm the risk rating of your property.

A typical backflow assembly unit will have test cocks and shut off valves.  Backflow devices must be thoroughly tested when they are installed, relocated or repaired.  Backflow devices must also be tested annually by a plumber Sydney to ensure they are in proper working order.

Backflow devices must be inspected annually be a licensed plumber Sydney

Sydney Water States the following about backflow:

Each backflow prevention containment device must be tested on an annual basis.  This is a condition of connection to the water supply. It means that the device is maintained and continues to operate effectively.  The annual test will ensure the drinking water supply is protected from backflow.

If a device is defective or faulty, it may:

1) not prevent a contaminated source entering the drinking water supply

2) cause water to be wasted through leaking devices

3) impact on the water pressure supplying your property

A backflow prevention accredited licensed plumber Sydney will need to test all your devices.  After testing your devices your licensed plumber Sydney will submit his report within 2 days on the Sydney water website stating if the device is installed correctly and if it has passed or failed the test.  The plumber Sydney will give you a copy of the Backflow Prevention Device Inspection and Maintenance Report. If a valve fails the test and is not repaired or replaced Sydney water can disconnect you from the main water supply.

 

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