RPZ Testing


Service & Installation

RPZ Backflow Preventer stands for Reduced Pressure Zone. The device has a series of check valves that control the direction that water can flow, and a pressure chamber that can be monitored for pressure between the valves. RPZ Backflow devices prevent contaminated water or chemicals from flowing back into the drinking water supply if there is a sudden or unexpected change in water pressure. This backflow can be the result of pressure that builds up in a hot water heater or boiler, or reduced pressure on the supply side caused by sudden increased demand (fire hydrant). RPZ backflow preventers ensure that the safety of the public drinking water is maintained

Petschke Plumbing Heating and Air Conditioning’s certified RPZ tester can perform an annual state test of a water main valve, called a backflow preventer. We test these devices and submit pass or fail reports to the New York State Department of Health and the County Water Authority. Don’t let a faulty system impact your business! Give us a call today and gain peace of mind!

  • RPZ Testing Backflow Prevention