Code: PVB (Backflow prevention device)
Description: (Pressure Vacuum Breaker) is a backflow prevention device used to stop contaminated water from flowing backward into the clean city water supply, commonly required on irrigation, sprinkler, and other outdoor water systems. It is a lower-hazard device than an RPZ and is installed and tested by a licensed plumber with results filed with NYC DEP
Practical Meaning: For a homeowner, this usually means a water safety device may be required if your property has an irrigation system, sprinkler system, or another setup that could let water flow backward into the city supply. You may need installation, testing, repair, or DEP filing help from a licensed professional.
Where You May See It: DEP filing, plumbing plans, irrigation system paperwork, sprinkler paperwork, backflow test report, contractor proposal, property compliance review.
Why It Matters: If a required backflow prevention device is missing, incorrect, or not maintained, you may face fines or even water service problems. This also matters during property upgrades, inspections, and compliance checks because it helps protect the public water supply from contamination.
Source: DEP Backflow Prevention Devices