In order to determine if there are any cross connections or potentially hazardous connections to the piping in your property in Hamilton, a Cross Connection Control Survey must be completed of the building. This survey may only be completed by a Certified Backflow Tester and we have a team of these here at Pitton Plumbing & Heating Inc. This survey identifies any cross connections throughout the building. If there is not already a Backflow Prevention Device present, the findings on this survey will determine the type of device required. For those deemed as high hazard, a Reduced Pressure Principle Assembly (RP) will be required. For those deemed as a moderate hazard, a Double Check Valve Assembly (DCVA) will be required.