Backflow Prevention

Cameron from CRG Plumbing & Maintenance is a fully accredited and qualified backflow prevention specialist, and can provide comprehensive backflow prevention services for properties throughout the Campbelltown and Greater Sydney region.

Did you know: By law, a boundary backflow prevention device must be checked annually by a qualified and licensed plumber.


Backflow occurs when water from a customer’s property flows backwards into our pipes. This may carry contaminants that can harm people’s health.

The problem is more likely to occur if:

  • there’s a drop in pressure in the main, eg during a main break
  • water pressure at the property is higher than at the main, eg if a pump is operating on the site.

Backflow Prevention Device

These devices ensure our water supply isn’t contaminated from hazards on a customer’s property.

They stop water in a customer’s water pipe flowing back into our water main.

Strong plumbing regulations and Plumbing and Drainage Standards are in place to protect our potable water supply from contamination which can occur when chemicals and other contaminants are drained back into our water distribution system.


We can carry out the following services for you

  • Annual backflow prevention testing, inspections and maintenance reports
  • Installation of backflow prevention devices/valves selected in compliance with  Australian Standards

We are happy to conduct a review of your backflow prevention devises to ensure you comply with regulations. Contact us on 02 4656 4064 for an appointment.

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