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Backflow Solutions

Backflow Solutions

Backflow Solutions2022-09-20T14:16:03-04:00

Satisfaction Guaranteed


Satisfaction Guaranteed


Backflow Services

We install, test, and repair all types of backflow assemblies.

If your water provider requires you to install or maintain a backflow preventer choose Arbor Plumbing & Backflow, the Triangle’s Backflow Solution! We offer the best experience and unmatched customer service.

Backflow TEST Explained

Backflow assemblies must be tested to ensure that you are being properly protected from backflow conditions. Over time your device will require maintenance, repair, or replacement because of environmental factors, mineral deposits, and corrosive elements present in your water. These conditions are to be expected and over time will impact the performance of your device. Testing makes for a system of detection and ensures that your assembly is performing to its maximum standard.

Why Choose Arbor:

  • Competitive rates and price matching options

  • Turn-key pricing

  • Warrantied installations and extended maintenance options

  • Ask about our premium options

  • TESTing provides a precise computation of the performance of your device’s internal components. Proper check valve and relief valve operation are necessary for high hazard backflow prevention assemblies.

  • TEST records will ensure the device is repaired in a timely manner. Testing companies assess previous test reports to make up-to-date maintenance schedule recommendations.

  • TESTing provides you the peace of mind that your device is working properly between testing intervals.


Backflow inspections are necessary to verify the quality of your assembly. In some instances, weather conditions and acts of vandalism compromise the integrity of your installation and necessitates repair or replacement. Never depend on mechanical devices unless they’re routinely inspected, TESTed, and maintained. Our staff members are experienced in the workings of backflow prevention. We are the Triangle’s backflow prevention and cross-connection control solution!

TEST your backflow assembly immediately following installation, and on an annual schedule after that. In some cases, TESTing should be carried out on a more frequent basis depending on the water quality, the hazards involved, and environmental conditions. It is essential that backflow prevention assemblies be TESTed, maintained, and inspected in order to effectively safeguard the public drinking supply.

Arbor Plumbing & Backflow promotes education about water protection and conservation. We install various devices used for protection against cross connections. Health problems, sickness and death can occur from ingesting contaminated water. EPA rules and regulations and the North Carolina Plumbing Code require the installation of backflow preventers to STOP backflow. The Federal Safe Drinking Water Act and its amendments have heightened attention on issues related to organic contamination and lead in drinking water. Cross Connection Control remains a critical component to maintaining safe drinking water. Absent continued effort in this area by water utility personnel, plumbers and the public, water quality will be compromised regardless of any effort to protect the water source. Contact Arbor Plumbing & Backflow for installations.

We’re committed to our customers!

Backflow Prevention FAQs

What is the NC DEQ?2022-08-19T13:29:59-04:00

The North Carolina Department of Environmental Quality (DEQ) is the lead stewardship agency for the protection of North Carolina’s environmental resources.

The organization, which has offices from the mountains to the coast, administers regulatory programs designed to protect air quality, water quality, and the public’s health, and also works to advance an all-of-the-above energy strategy that fits North Carolina’s needs. The Division of Water Resources is responsible for the environmental protection and quality of the State’s surface water and groundwater, and to ensure safe drinking water for its residents. This authority is granted in accordance with laws, policies and rules established by the U.S Environmental Protection Agency, the N.C. General Assembly, the Environmental Management Commission, and the Commission for Public Health.

What is the Safe Drinking Water Act (SDWA)?2022-08-19T13:03:08-04:00

The SDWA focuses on organic contaminants and lead in the drinking water. It requires that sanitary surveys be conducted at water treatment plans to assure that they are producing and distributing water safe for consumption. What is more, cross connection control programs are required to be implemented by local governments. Backflow prevention and cross connection control are subjects paramount to public health and safety. 

See “What is backflow?

Are there any Federal and/or State Backflow Prevention regulations?2022-08-19T13:27:36-04:00
What is Water Pollution2022-08-11T15:37:47-04:00

Any impairment of water quality that affects the aesthetic (sight, smell, etc.) of the water, yet does not create a health hazard. 

See “What is water contamination?

What is Backsiphonage?2022-08-11T15:36:22-04:00

When the public water supply pressure is less than atmospheric pressure causing a vacuum (backflow) phenomenon.

See “What is backflow?

What is Backpressure?2022-08-11T15:35:13-04:00

When the pressure from a non consumable water source or supply is greater than the public water supply pressure, resulting in a backlow condition.

See “What is backflow?

What is the Public Health significance of Backflow?2022-08-11T15:33:00-04:00

The backflow of chemical and biological contaminants into a drinking water system can be harmful to the health of a population. The type of exposure will determine the severity of harm. The Flint Michigan water crisis speaks to long term effects of chemical exposure to the drinking water. 

See “What is water contamination?

What’s the best method to protect my outdoor Backflow Assembly from freezing?2022-08-04T14:37:24-04:00

The best method to protect your assembly is to place it inside of an approved enclosure.

See “Can my Backflow Preventer be negatively impacted by the weather?

Can my Backflow Preventer be negatively impacted by the weather?2022-08-04T14:35:14-04:00

Yes! Your assembly is full of water and has the potential to freeze during the winter months. Freezing causes leaks, holes and defects in the internal components. If your assembly freezes you will need repairs/replacement. 

See “Can my Backflow Preventer be negatively impacted by the weather?

How can I protect my Backflow Preventer?2022-08-04T14:33:15-04:00

When backflow preventers are left outside they must be protected against the weather, particularly in the winter months. If you have an irrigation system backflow preventer be sure that it has been installed with union fittings to facilitate disassembly during the winter months. Domestic and fire-flow assemblies on the exterior must be secured in a protective enclosure approved by your local Inspections Department. These enclosures are designed to protect your assembly from freezing and from exposure to the elements. 

Are there discounts on testing costs if I have multiple Backflow Preventers?2022-08-04T14:24:00-04:00

Arbor Plumbing & Backflow serves the Greater Triangle area. This includes all of the border municipalities surrounding Raleigh, Durham and Chapel-Hill. 

Are there discounts on testing costs if I have multiple Backflow Preventers?2022-08-04T14:21:45-04:00

Yes. If you have 2 more assemblies you may save up to 25% on testing. 

See “How do I redeem coupons?”

What is Backflow reporting and whose responsibility is it?2022-08-04T14:19:05-04:00

We take care of reporting the findings of your test and inspection. Reporting is our responsibility. We have up to 14 days to transfer the records to your Water Provider, however, we generally report the findings within 24 hours of your service.

See “Can you provide a test history of our backflow preventers’ performance?”

Can you provide a test history of our backflow preventers’ performance?2022-08-04T14:15:36-04:00

Yes. If you’re curious about how your assembly has performed in years passed please let us know and we’ll provide you with performance records.

See “How often should I have my Backflow preventer tested?”

What do I need to do after having my Backflow Preventer tested?2022-08-04T14:13:48-04:00

Sit back and relax. Arbor Plumbing & Backflow will take care of record transfers with your Water Provider. Recordkeeping and records transfer is a part of the service we provide.

See “How often should I have my Backflow preventer tested?”

How much does a Backflow test cost?2022-08-04T14:11:50-04:00

Backflow tests start at $110.00 for residential irrigation system backflow preventers. Prices vary depending on the size, type, and location of the assembly for fire-flow and commercial domestic systems. Be sure to inquire about pricing at the time of booking if you are a commercial or industrial client.

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What happens if my Backflow test fails?2022-08-04T14:07:59-04:00

Our experienced technicians will assess the extent of your failure and provide you with solutions to repair or replace your assembly. In the event you’d prefer to forgo repairs and/or replacement, your water provider will receive failing testing results. Water providers will reach out to customers with additional requirements about repairing or replacing the assembly. Providers levy penalties for non-compliance. Sometimes repairs are as simple as removing debris from the check assemblies. Certain scenarios require replacement of the internal components of your assembly or assembly replacement. Replacement and repair work is billed separately; each service includes the cost of re-testing your assembly and reporting the results to your water provider.

See “How often should I have my Backflow preventer tested?”

We need a fire-flow Backflow Prevention Assembly tested, will the alarm system need to be deactivated?2022-08-04T14:05:11-04:00

If your Fire protection (sprinkler) system is equipped with an alarm, the alarm will need to be deactivated prior to having the test performed. We recommend disarming the alarm for a minimum of 2 hours. 

How long should a backflow test take?2022-08-04T14:02:09-04:00

Backflow tests generally take about 30 minutes. In some cases, tests may take longer due to accessibility reasons or assembly preparation time (Fire-flow system shutdown).

See “How often should I have my Backflow preventer tested?”

How do I find out when my backflow test is due?2022-08-04T14:00:48-04:00

You may always ask us about your testing schedule. We can provide you with everything you need to know about your assembly. You may also contact your Water Provider for these details. 

See “How often should I have my Backflow preventer tested?”

How often should I have my Backflow preventer tested?2022-08-04T14:00:41-04:00

Your Water Provider sets the testing schedule for your assembly. Domestic backflow assembly tests are completed annually; Fire-flow backflow tests are generally completed on an annual basis; Irrigation backflow assemblies are tested on a bi-annual or tri-annual schedule. These schedules are at the discretion of your Water Provider. Backflow assembly manufacturers also recommend test schedules. In most cases, the manufacturer(s) recommend annual testing. Never forget that a backflow assembly is a mechanical device constantly under water pressure and will surely wear out over time. 

See What is backflow preventionand “How do I find out when my test is due?

Where are some common places to find Backflow Prevention devices/assemblies?2022-08-04T13:50:33-04:00

You will commonly find a backflow preventer at the right of way near your meter box, in a mechanical room or closet, in the back of your building following your fire line, and in some cases in a vault underground. 

See What is backflow prevention and “What is the best device to protect against backflow?”

What is the best device/assembly to protect against Backflow?2022-08-04T13:45:17-04:00

The RPZ (Reduced Pressure Zone) is the gold standard for backflow protection. This assembly has two testable check valve components and a relief valve for visual inspection. You’ll always be able to determine if/when something is going on in your water system (pertaining to hydraulic pressure) with this type of mechanical device.

See “What is the best method to prevent Backflow?

What is the best method to prevent Backflow?2022-08-04T13:43:02-04:00

The best method to protect against contamination and backflow is an air gap. Unfortunately, air gaps aren’t always a viable method for installations.

See “What is backflow?

What are common waterborne diseases?2022-08-04T13:39:34-04:00

Any biological contaminant spread through water may cause health problems or worse. Common waterborne diseases are: Infectious hepatitis, Cholera, Dysentery, Amoebic dysentery, Giardiasis, Cryptosporidiosis, Typhoid, Gastroenteritis, and Legionella. 

See “What is water contamination?

What is water contamination?2022-08-04T13:41:06-04:00

Hazardous agents that may enter the drinking water and when ingested may cause disease.

See “What are common waterborne diseases?