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Frequently Asked Questions

How do I know if my water pressure is too high?2022-08-11T16:13:27-04:00

Small amounts of water dripping from the Temperature and Pressure Relief Valve generally indicates that the water pressure in your home is too high or that you may need to change or install a Thermal Expansion Tank.

Is water heater maintenance included in the Arbor Plumbing & Backflow Maintenance Plan?2022-08-11T16:12:11-04:00

Yes, water heater maintenance is included in our maintenance plan

How do I know if my water heater tank is overheating?2022-08-11T16:07:10-04:00

When large amounts of water discharge from the water heaters’ Temperature and Pressure Relief Valve it may be due to the tank overheating. 

How do I turn off the water supply going to my water heater?2022-08-11T16:04:09-04:00

Arbor Plumbing installs a code-required appliance isolation valve within three (3) feet of the water heater. Take a look on the right side of the appliance just above the top of the tank and you should see the valve. 

What’s the cost difference between premium and standard water heater installations?2022-08-11T16:03:01-04:00

Premium installations include stainless steel water distribution system construction (piping coming to and from the tank), an inline sediment filtration system, and a full port ball valve drain assembly. Standard water heater installations include a like-for-like change-out installation with no upgrades.

Why does my water smell like boiled eggs?2022-08-11T16:01:04-04:00

Bacteria and other impurities present in the drinking water react with the appliances’ anode rod feature and emits a rotten egg odor. The odor is present when opening hot water taps. 

Can you adjust the temperature on my water heater?2022-08-11T15:58:33-04:00

We can not adjust the water temperature beyond 120 degrees Fahrenheit for tank-type of appliances. Generally, the appliance is preset by the manufacturer for electric appliances. We will set the temperature to 120 degrees Fahrenheit for gas installations. Anything beyond this temperature severely increases the risk of scalding. 

How often should I flush my water heater?2022-08-11T15:57:07-04:00

Manufacturers recommend water heater flushing every 6-12 months. We recommend flushing twice a year at a minimum.  

When do I need a Thermal Expansion Tank?2022-08-11T15:55:08-04:00

Thermal expansion control is required anytime you have a closed water distribution system. Check valves such as backflow preventers or pressure reducing valves are devices that close your water distribution system. In some cases, water meters have check valves integrally installed and such systems (homes) will require a means to alleviate thermal expansion.

Are manufacturer warranties available?2022-08-11T15:53:53-04:00

Yes. We furnish appliances with a minimum 6-year warranty.

How long will my water heater last?2022-08-11T15:52:47-04:00

Your water heater will perform beyond its warranty when it is appropriately maintained. Be sure to inquire about our Maintenance Plan and premium upgrades for your water heater appliance. If your water heater fails before the warranty period has concluded, the manufacturer will furnish you with a new appliance.

Does Arbor Plumbing & Backflow perform installations in residential, commercial and industrial settings?2022-08-11T15:51:40-04:00

Yes. Contact us for full-service plumbing in any setting. 

Will Arbor Plumbing & Backflow dispose of my existing water heater?2022-08-11T15:50:09-04:00

Yes! Water heater disposal is a part of the cost of service. We’ll get rid of your old piping and appliance and replace it with new, code-approved materials. 

Does Arbor Plumbing & Backflow furnish water heaters?2022-08-11T15:48:57-04:00

Yes. Arbor Plumbing & Backflow furnishes brands from the industry’s leading manufacturers.

Does Arbor Plumbing & Backflow offer a warranty for water heater installations?2022-08-11T15:47:35-04:00

Arbor Plumbing & Backflow offers a 1 year warranty on every installation we perform. This warranty is in addition to the manufacturer warranties transferred by product makers. 

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.

See “How do I redeem coupons”

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?

What are the two types of Backflow?2022-08-04T13:36:14-04:00

Backsiphonage and Backpressure.

  1. What is the Public Health significance of Backflow?
  2. What is Backpressure?

See “What is a Backflow?

Why are Cross Connections created?2022-08-04T13:32:49-04:00
  1. People are unaware of the hydraulic conditions created by cross connections.
  2. People make these connections haphazardly because of its convenience.
  3. People accidentally make these connections.

See “What is a Cross Connection?

What is Cross Connection Control?2022-08-04T13:29:43-04:00

Cross connection control is a health issue and includes the implementation of systems for the inspection, identification and elimination of piping arrangements that have the potential for a hazardous backflow occurrence.

What is a Cross Connection?2022-09-09T15:31:23-04:00

The physical links in piping systems that allow backflow; a connection or arrangement of piping or attachments through which a reversal of flow could occur; a connection between a drinking water supply and a non-drinking water system. 

What is Backflow Prevention?2022-08-04T13:27:18-04:00

Backflow prevention is the application of techniques, mechanisms and equipment for the elimination of conditions that allow backflow to occur. It deals with the science of the laws governing moving water.

What is Backflow?2022-08-04T13:26:06-04:00

Backflow means water of questionable quality, wastes, or other contaminants entering the drinking water system through a reversal of flow. The direction of flow under these conditions is in the reverse direction from that intended by the system. Backflow can take place by two phenomena: Backsiphonage or Backpressure.

How do I redeem coupons?2022-04-16T16:54:43-04:00

To use a coupon, mention the coupon that you wish to redeem at booking.

Do you offer maintenance plans?2022-04-16T16:53:22-04:00

Yes. Visit our Maintenance Plan page.

Do you offer financing?2022-04-16T16:50:26-04:00

No, we do not currently offer financing for our services.

Who is the “Authority Having Jurisdiction”?2022-07-25T13:32:46-04:00

The local Inspections Department.

When are service agreements required?2022-07-25T13:32:59-04:00

Service Agreements are required on all services provided by Arbor Plumbing & Backflow.

Is my credit card information saved in your system?2022-04-16T16:42:32-04:00

No. Our payment processors DO NOT save your credit card information.

Do you offer camera inspection services?2022-04-16T16:39:53-04:00

Yes. Camera inspections are billed as Specialty Calls. Visit our Service Rates page for more information on pricing.

Do you offer drain cleaning services?2022-04-16T16:38:08-04:00

Yes. Drain cleaning services are billed as Emergency Services. Visit our Service Rates page for more information on pricing.

Which types of installations require permits?2022-07-25T13:33:23-04:00

New construction, tankless water heater installations, plumbing systems relocations, gas installations, and the like all require a permit from the authority having jurisdiction.

Are you GREEN certified?2022-04-16T16:34:10-04:00

Yes, we are GREEN Certified.

Do you install lead free products?2022-07-25T13:33:33-04:00

Yes, our installations are lead-free.

What happens if there’s no booking available online?2022-04-16T16:29:45-04:00

Call our office for availability at (984)295-8378.

Do you warranty your installations?2022-07-25T13:33:46-04:00

Installations are covered by a 1-year limited warranty against installation (service) defects. Service warranties do not apply to products.

Do you service commercial and industrial buildings?2022-07-25T13:33:56-04:00

Yes, we provide commercial, residential and industrial services.

Do you offer all plumbing services?2022-04-16T16:24:23-04:00

Yes. Arbor Plumbing & Backflow is a full-service plumbing company. Visit our services page for more information on the services we provide.

Do I need a Backflow Preventer?2022-04-16T16:21:55-04:00

Backflow prevention and Cross Connection Control are mandated by Federal, State and Local laws. Contact your water provider for more information.

What water heater brands do you install?2022-04-16T16:19:35-04:00

The water heater brands we install are Rinnai, Bradford White, STATE, A.O. SMITH, RHEEM, and NORITZ.

Do you have Liability insurance?2022-07-25T13:34:51-04:00

Yes, Arbor Plumbing & Backflow is insured.

Is Arbor Plumbing & Backflow Licensed?2022-07-25T13:34:34-04:00

Arbor Plumbing & Backflow holds an Unlimited Plumbing License as granted by the North Carolina State Board of Plumbing Heating & Fire Sprinkler Contractors. Plumbing License #31736

What are acceptable forms of payment?2022-04-16T15:26:59-04:00

Cash, credit card or debit cards are accepted forms of payment. Card payments are subject to a 5% processing fee.

What is your COVID-19 policy?2022-04-16T15:04:01-04:00

​Arbor Plumbing and Backflow works to maintain the health and safety of our employees and clients. In response to the COVID-19 pandemic, our staff strictly adheres to the CDC prescribed methods for social distancing and face covers. Please help us to maintain the integrity of safe practice recommendations.

Are after hours services and services performed on holidays billed differently?2022-07-25T13:35:14-04:00

Yes. Refer to the Service Rates page for cost information.

Are you open on holidays?2022-04-16T14:58:37-04:00

 Emergency services and major installations are available on weekends and holidays. Contact us here to request service on holidays or call 984-295-8378.

Are you open on weekends?2022-04-16T14:56:22-04:00

Emergency services and major installations are available on weekends and holidays. Contact us here to request weekend service or call 984-295-8378.

What is a Service Call?2022-07-25T13:35:30-04:00

 Service calls are general plumbing repairs including but not limited to leak investigation and repair, faucet installations, valve installations, clearing clogged drains, and toilet repairs. Service calls do not include fixture installations or major installations. Click here to schedule a service call.

Do you offer Emergency Service?2022-07-25T13:35:44-04:00

Yes. Emergency services are calls scheduled after 3:00pm and include calls outside of our service area. Click here to request emergency service.

What areas do you service?2022-04-16T14:36:10-04:00

Arbor Plumbing & Backflow services the Greater Triangle Area. Services outside of the Greater Triangle area are billed as Emergency Services. The cities inside our service area are: Raleigh,  Wake Forest, Cary, Knightdale, Clayton, Durham, Chapel Hill, Apex, Garner, Fuquay-Varina, Wendell, Zebulon, Holly Springs, Hillsborough.

What are your normal hours of operation?2022-04-16T14:35:44-04:00

Monday through Friday 8:30 am – 5:00 pm. After-hours service/Emergency Services are services scheduled after 3:00 pm and include services outside of our service area.

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