- Building Permit Application Form
- Building & Permit Information
- BC Safety Authority
- How to get a Building Permit
Accepted Backflow Prevention Assemblies
Backflow prevention devices, if properly installed and maintained, allow water to flow in only one direction. Water can flow from the public water system to the customer's property, but not in the other direction.
The type of device that is suitable for your property is based on the degree of hazard your property presents to the public water system. The most common types of backflow devices used are:
High Risk -
Types of Backflow Prevention Devices
If you are required to install a backflow preventer, contact the City of Pitt Meadows for recommendations on which preventer to install.
Air Gap (AG)
Reduced Pressure Zone Assembly (RPZA)*
Double Check Valve Assembly (DCVA)*
Hose Connection Vacuum Breaker (HCVB)
Dual Check Valve (DuC)
* Only the Reduced Pressure Principle Assembly (RPZA) and the Double Check Valve Assembly (DCVA) will be accepted for Premise Isolation.
Premise Isolation is having a backflow prevention device installed at the point where the water service enters a property, building or facility.
The following properties are required to have Premise Isolation at the property line:
Already have Premise Isolation?
If your property already has Premise Isolation installed, you are required to complete a survey and test existing backflow prevention devices, using aBCWWA approved licensed tester [PDF - 21 KB].
Fixture Isolation is having a backflow prevention device installed at the source of the potential contamination. This provides protection for only a section of the piping system.
Zone Isolation is having a backflow prevention device installed that protects the rest of a building from one particular area.
If your property only has Fixture or Zone Isolation, and you fall into the high hazard category, you will need to update to Premise Isolation.