G Grizzly Backflow & Plumbing
Charlotte, NC · 28202 Local testers · Utility reports filed

Fire Sprinkler Backflow Testing in Charlotte, NC Near Me

Fire sprinkler backflow testing in Charlotte, NC for DCDA and RPDA fire line assemblies, including forward flow testing. Call (833) 990-5874.

Call (833) 990-5874 More services
Fire Sprinkler Backflow Testing in Charlotte, NC
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(833) 990-5874
Certified testers
Reports filed with your utility
RPZ, DCVA and PVB
Price talked through by phone

Fire Sprinkler Backflow Testing in Charlotte, NC

Fire lines usually carry a double check detector assembly (DCDA) or a reduced pressure detector assembly (RPDA). The bypass meter on the side catches small leaks or unauthorized use without slowing water during a fire.

Fire sprinkler backflow testing has two jobs. The backflow test checks each valve against its required differential, like any other assembly. NFPA 25 also calls for an annual forward flow test at system demand, which proves the assembly will pass the water the sprinklers need.

Assemblies on fire lines are often 4 to 10 inches, and many sit in vaults or riser rooms. Shutting one down takes coordination, because the building is without sprinkler protection during the test. Building owners usually notify the alarm monitoring company before work starts.

The report often goes to two places: the water purveyor and the local fire authority.

Grizzly Backflow & Plumbing connects Charlotte, NC building owners with testers who handle fire line backflow prevention testing and paperwork. Call (833) 990-5874.

How it works

Four steps to backflow testing in Charlotte, NC

  1. 01

    Grab your notice

    Have the utility letter handy. It lists the device, serial number and due date.

  2. 02

    Talk it through

    Call (833) 990-5874. We go over the device type and the price before anything is booked.

  3. 03

    Test day

    A certified tester reads each check and the relief valve on a calibrated gauge.

  4. 04

    Report filed

    The report goes to your water utility, and you keep a copy for your records.

Coverage

Backflow Testing Services Across Charlotte, NC

Backflow testing for the neighborhoods and ZIP codes around Charlotte, NC.

Neighborhoods we cover for backflow testing

  • Uptown Charlotte
  • Dilworth
  • South End
  • NoDa
  • Plaza Midwood
  • Myers Park
  • Ballantyne
  • Elizabeth

ZIP codes we serve

28202 28203 28204 28205 28206 28207 28208 28209 28210 28211 28212 28213 28214 28215 28216 28217 28223 28226 28227 28244 28262 28269 28270 28273 28274 28277 28278 28280 28282

Backflow testing FAQs

Questions about backflow testing

Questions we hear most often about Fire Sprinkler Backflow Testing in Charlotte, NC.

Talk to a person
How long does a backflow test take?
A residential PVB or double check test usually takes 20 to 30 minutes. Large commercial and fire line assemblies take longer.
Will my water be off during the test?
Yes, briefly. The tester closes the shutoff valves on the assembly while reading the checks, so water downstream of the device is off until the test is done.
Does my lawn sprinkler system in Charlotte, NC need a backflow preventer?
Almost every US plumbing code requires one on irrigation, since fertilizer, pesticide and standing water at the heads can siphon back. The device type depends on local code and how the system is laid out.
Do I need an expansion tank after installing a backflow preventer?
Often, yes. The device makes your plumbing a closed system, so heated water cannot expand back to the main and the water heater relief valve may start dripping.
Who sends the test report to the water utility?
The tester usually files it, either on the utility's paper form or through its online portal. Ask for a copy for your own records.

Book a backflow test

Backflow Test Due in Charlotte, NC? Call now.

Certified testers for backflow testing in Charlotte, NC. Call (833) 990-5874 and we go through the device and the price before anything is booked.

(833) 990-5874
Phone · (833) 990-5874
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