RPZ Valve vs Double Check Valve in Sydney: A Side-by-Side Comparison for Hazard Rating
The property owner gets his mail and finds that there is a notice from Sydney Water which indicates the need for backflow testing. The notice could be referring to an RPZ or double-check valve. These two work by ensuring that the contaminated water does not flow backwards into the primary source of drinking water. They […]
RPZ, DCV, or PVB? Which Backflow Device Do You Actually Need?
Your choice of backflow device will be based wholly on the hazard level of your property as per the Australian standards. High hazard properties (chemical plants, certain restaurants, etc.) will require an RPZ Valve while medium hazard properties (standard commercial strata, for example) will require a DCV Valve. Pressure Vacuum Breakers should only be used […]