Omnia Mechanical Group

571 Timpson Place Bronx, NY 10455

Phone: 212-534-2500

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RPZ Testing in NYC: What You Need to Know to Maintain Clean Water

If you own or manage a property in New York City, you may have heard about RPZ testing. If you’re not sure what RPZ testing in NYC entails, read on to learn why your building must undergo this annual check and what you can do to increase your chances of passing immediately.

What Is RPZ Testing?

Checking your building’s backflow prevention device

RPZ stands for reduced pressure zone. RPZ testing is performed annually and is mandated for many property types in New York City (see more, below). This type of evaluation checks the function of your backflow prevention device, which is essential for clean water for building occupants.

What Types of Properties Must Undergo RPZ Testing in NYC?

Large residential buildings and more…

Most apartment, condo, and co-op buildings in New York City are required to have an RPZ test once per year. If you have a commercial boiler or treated boiler water, you must have an RPZ test. Other factors that indicate your building needs this test include:

  • – Having a rooftop water tank
  • – Using multiple city water lines
  • – Having a swimming pool
  • – Being one of many kinds of commercial properties that use sizable amounts of water (hospitals, greenhouses, commercial kitchens, and manufacturing facilities, for example)

What Is the Function of a Backflow Prevention Device?

Keeping your water clean

As mentioned above, an RPZ test checks your backflow prevention device. This is a component of your water system that prevents the backflow of contaminated water into your clean water supply in the event of a drop in pressure. Pressure loss is common in New York City, and there are a couple of types you should be aware of:

  • – Back-siphonage occurs when a water main breaks or has to be abruptly shut off during construction.
  • – Back-pressure is typically an internal problem. The pressure from your water distribution system is lower than that of the building system pressure. Back-pressure often happens in buildings with commercial boilers, rooftop water tanks, pressure booster pumps, and distributor pumps.

Without a backflow prevention device, you could wind up with dirt, sediment, rust, or chemicals in your drinking and washing water.

Where Is Your Backflow Prevention Device Located?

Three ways to find it

If you’re not sure if your property has a backflow prevention device or where it’s located, there are three ways to get an answer. Usually, these devices are located near the main shutoff valve where the city water supply enters the building. A backflow prevention device is made of metal and has two valves, one on each end of it.

Still can’t find your backflow prevention device? Try these methods of locating it:

  • – Reach out to the New York City Department of Environmental Protection (DEP) to see if your building has a history of an RPZ installation or inspection.
  • – Contact Sanitary Plumbing. We’ll come out and look around your building to see if we can find your device.

How Does RPZ Testing in NYC Work?

It is your responsibility to schedule the annual test with a certified tester like Sanitary Plumbing, who will check the integrity of your backflow prevention device.

Within 30 days of the test, a report must be submitted on the status of your RPZ test. The city can cite and fine you for failure to complete your RPZ test on time. If you go too long without completing the test, you could even have your property’s water shut off by the city.

Call Sanitary Plumbing for Your Building’s RPZ Test

A century of plumbing experience

If you are ready for your property’s RPZ test, or if you need to fix something to make certain your building passes, reach out to Sanitary Plumbing today by calling 212-734-5000. It’s much less expensive to get your RPZ test done in a timely manner than to pay the city’s fines for a late test. And of course, maintaining safe, clean water for your building’s occupants should be a high priority, and this is one way to ensure you can check off this box. Don’t wait until the last minute to contact us, as we book up quickly. Get in touch today!

Our Privacy Policy

Omnia Mechanical Group(the “Company”) strives to ensure the highest standards for property listings and customer information privacy. Please review the following statement to learn about our company practices and policies. Please be aware that our Privacy Policy is subject to change at any time.

1. Purpose.

This Privacy Policy (“the Policy”) provides information on how the Company uses your personal information. By agreeing to the Policy, you agree to our collection and use of your personal information as described in the Policy. This Privacy Policy is effective for all new users of

2. Personal Information.

You can browse some areas of (“the Website”) without being a registered user. However, certain activities do require registration. (You consent to the transfer and storage of your information by registering with

3. Use of Information.

Our primary purpose in collecting personal information is to provide you with a safe and user-friendly experience. For example, the Company may use your personal information to:

  • Improve our services and the Website’s content and layout;
  • Provide the services and necessary customer support you request;
  • Resolve disputes, collect fees, and troubleshoot problems;
  • Track and record customer satisfaction with our services;
  • Protect the Company against error and fraud;
  • Inform you of special promotions and announcements;
  • Enforce our agreements, terms, conditions, and policies; and
  • As otherwise described to you at the time of collection.

We may occasionally ask you to complete optional surveys. These surveys are used to improve and customize your experience with

The Company always provides you the ability to opt-out of further communication such as promotions and surveys; see the Opt-Out section below.

The Company does not share any of your personal information with outside organizations, companies, individuals, etc. The only exception to this standard is if such a disclosure is reasonably necessary to respond to any and all legal processes.

4. Links to Other Sites.

The Website may have links to other websites that may collect personally identifiable information about you. The Company is not responsible for the privacy practices of the content of those linked websites.

5. Safety & Security Precautions.

The Website has strict security measures in place to protect you and your information from fraud. Once your information is provided to Omnia Mechanical Group, we strive to ensure the confidentiality of your identity and information.

6. Opt-Out.

The Company provides you with the opportunity to opt-out of receiving promotional and other non-essential, marketing-related communications from Omnia Mechanical Group. If you would like to opt-out of these select communications, please see any of the Company’s email communications and follow the directions indicated.

7. Account Protection.

Your password ensures the security of your account. When choosing a password, the Company suggests using various characters. It is highly recommended that you do not disclose your password to anyone. (If you do disclose your password or your personal information with others, you are responsible for all actions taken in the name of your account.) If the security of your password is compromised for any reason, please contact the Company immediately.

8. Accuracy of Information

The Company does not guarantee the accuracy of information for any and all of its properties on the Website, and is not responsible for any errors or misrepresentations (made by Renters, the Client, or otherwise).

9. Cookies

The Company may place a small cookie on your computer’s hard drive. This allows us to personalize your use on the Website. In order to maximize the functionality and usability of the Website, you must set your browser’s preferences to allow both permanent and temporary cookies.

10. Changing Your Personal Information.

Should your personal information change, please immediately update your information on the Website. This will ensure the accuracy of our records. The Company does retain personal information from closed accounts in order to comply with law and collect and disburse any fees owed.

11. Third Parties

This Privacy Policy addresses only the use of information we collect from you. Since does not control the privacy policies of third parties, you are subject to the privacy policies of those third parties. It is advisable that you consult with the management of third parties before you disclose your personal information to others.

12. General

We may amend this Privacy Policy at any time by posting the amended terms on the Website. All amended terms are immediately effective after they are initially posted on the Website.

13. Privacy Policy Questions & Concerns

Questions and/or concerns regarding the Policy should be emailed to the following email address: