Backflow Prevention Requirements. Backflow is when there is unintentional flow of water in the wrong direction from a potentially polluted source into the drinking water supply. All properties connected to Sydney Water's supply must install a testable Backflow Prevention Containment Device appropriate to the property's hazard rating. Property with a high or medium hazard rating must have the backflow prevention containment device tested annually. Properties identified as having a low hazard rating must install a non-testable device, as a minimum. Separate hydrant and sprinkler fire services on non-residential properties, require the installation of a testable double check detector assembly. The device is to be located at the boundary of the property. Before you install a backflow prevention device: • Get your hydraulic consultant or plumber to check the available water pressure versus the property's required pressure and flow requirements. • Conduct a site assessment to confirm the hazard rating of the property and its services. Contact PIAS at NSW Fair Trading on 1300 889 099. For installation you will need to engage a licensed plumber with backflow accreditation who can be found on the Sydney Water website: xxxx://xxx.xxxxxxxxxxx.xxx.xx/Xxxxxxxx/XxxxxxxxXxxxxxxxxx/
Backflow Prevention Requirements. Backflow is when there is unintentional flow of water in the wrong direction from a potentially polluted source into the drinking water supply. All properties connected to Sydney Water's supply must install a testable Backflow Prevention Containment Device appropriate to the property's hazard rating. Property with a high or medium hazard rating must have the backflow prevention containment device tested annually. Properties identified as having a low hazard rating must install a non-testable device, as a minimum. Separate hydrant and sprinkler fire services on non-residential properties, require the installation of a testable double check detector assembly. The device is to be located at the boundary of the property. Before you install a backflow prevention device:
1. Get your hydraulic consultant or plumber to check the available water pressure versus the property’s required pressure and flow requirements.
2. Conduct a site assessment to confirm the hazard rating of the property and its services. Contact PIAS at NSW Fair Trading on 1300 889 099. For installation you will need to engage a licensed plumber with backflow accreditation who can be found on the Sydney Water website:
