Backflow Prevention - What You Need to Know

Why is backflow prevention important?

Backflow prevention keeps Jupiter’s drinking water clean. It stops used or non-drinking water from flowing backward from a property into the public water supply, helping ensure our community always has fresh and safe water.

What’s a cross-connection?

A cross-connection is any point where the drinking water supply could come into contact with used or non-drinking water. For example, an irrigation system that pulls from a pond or well could create a pathway for contaminants to enter the water system if backflow occurs. By protecting against cross-connections and preventing backflow, we help keep Jupiter’s water at the high quality our community expects.

How does backflow happen?

Backflow happens when the water pressure in the system changes, causing water to flow backward. This can occur in two main ways:

Pressure drop in the public system – If the water pressure drops suddenly (for example, if a water main breaks), it can create a suction that pulls non-drinking water into the drinking water supply.
Higher pressure on your property – If your private system has higher pressure than the public system, water from your property could be pushed back into the public supply.

Backflow prevention devices help stop these situations, protecting the drinking water.

How will I know it’s time for testing?

The Town of Jupiter will send you a notice when your backflow device is due for testing. To keep everything running smoothly, the Town asks that passing test results be submitted within 30 days. If they’re not, a second reminder will be sent. After three reminders without a passing test, the Town may temporarily shut off water to protect the public water supply.

How do you test?

Testing your backflow device is straightforward:

First, make sure the Town has your current mailing address so notices reach you promptly.
Schedule a certified backflow tester to conduct the inspection. They will connect testing equipment to your backflow device to check valves, measure pressure and ensure everything is working correctly.
The tester then uploads the results directly to the Town’s database.
If your device needs repairs, you are responsible for completing them and scheduling a re-test. If you need extra time, simply email backflow@jupiter.fl.us to coordinate.

Who can install and test these devices?

Only licensed plumbing contractors can install backflow prevention devices. Testing must be performed by a Certified Backflow Prevention Technician (CBPT). Any new or replacement devices require a permit from the Town’s Building Department.

How do I find a certified tester?

To find a qualified tester, search online for plumbing contractors who are certified to test backflow prevention devices. The Florida Department of Business and Professional Regulation has a website where you can search by license type: https://www.myfloridalicense.com/wl11.asp. For License Category, select Construction Industry and for License Type select Certified Plumbing Contractor. The search results will show relevant companies, location, and license status. The licensed plumber can provide a copy of their certification in the Backflow Prevention Assembly Tester program to show they have specialized in this type of work.

What is the typical price to have a backflow prevention device tested?

Prices vary depending on the company, size of the device, and if the tests are completed for multiple devices. Generally, the price range is $50 to $150.

Does every property need a backflow prevention device?

Not every property requires a backflow prevention device. Devices are typically needed for properties where there’s a risk of non-drinking water flowing back into the public water supply, such as properties with irrigation systems, pools or certain commercial connections. For details, click to see the Town of Jupiter Utilities Guide for Development Design and Construction Standards.

I am a plumber. How do I register to ensure my results are sent to the Town?

Instructions for registering to submit test results, as well as forms and agreements, are available on the Town’s Developers and Contractors Information page.

Need more information?

Residents can call the Town of Jupiter Water utility Field Operations at 561-741-2705 or email backflow@jupiter.fl.us.