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Backflow prevention devices are vital plumbing fixtures that protect the city’s water supply.  Our city has many laws governing the installation requirements for these devices:

  • Every building in NYC is required to have a properly registered and installed backflow preventer on any water main that feeding a building.
  • If you received an “Order to Install A Backflow Preventer” from NYC DEP, you must not ignore it. If you do, you will be subject to violations, fines, and eventually a complete water shut down to your property.
  • Additionally, if you ignore the DEP’s order to install and a backflow incident occurs, you may face excessive financial liability.

What if I don’t test a backflow device?

  • After installation has been completed and the “initial test report(s)” have been sent to and approved by NYC DEP, you must continue to have the device tested every 12 months.
  • Failure to test can prevent the device from operating correctly, which could lead to liability in the event of a device failure. It also leaves you subject to fines and violations.
  • It is your responsibility to ensure that not only the testing gets done, but DEP approves each annual test. If you do not receive an annual approval, you must contact DEP to make sure they received and approve your test(s).