G Grizzly Backflow & Plumbing
Saint Petersburg, FL · 33701 Local testers · Utility reports filed

Fire Sprinkler Backflow Testing in Saint Petersburg, FL Near Me

Fire sprinkler backflow testing in Saint Petersburg, FL 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 Saint Petersburg, FL
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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 Saint Petersburg, FL

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 Saint Petersburg, FL 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 Saint Petersburg, FL

  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 Saint Petersburg, FL

Backflow testing for the neighborhoods and ZIP codes around Saint Petersburg, FL.

Neighborhoods we cover for backflow testing

  • Downtown
  • Grand Central District
  • Old Northeast
  • Kenwood

ZIP codes we serve

33701 33702 33703 33704 33705 33706 33707 33708 33709 33710 33711 33712 33713 33714 33715 33716

Backflow testing FAQs

Questions about backflow testing

Questions we hear most often about Fire Sprinkler Backflow Testing in Saint Petersburg, FL.

Talk to a person
What is the difference between an RPZ and a double check valve?
Both have two independent check valves. An RPZ adds a relief valve between the checks that discharges water to atmosphere if the checks leak, which is why it is required on high-hazard connections.
Can a backflow preventer freeze?
Yes. Trapped water expands and can crack the bronze body or blow out the bonnet. Insulated enclosures, heat cable or draining the device for winter prevent it.
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.
Is fire sprinkler backflow testing different?
Yes. Along with the standard check valve test, NFPA 25 calls for an annual forward flow test on fire line backflow assemblies. Results often go to both the water utility and the fire authority.
Can a backflow preventer be repaired instead of replaced?
Often it can. Rebuild kits with new discs, springs and seals are sold for most brands. Replacement makes more sense when the body is cracked or parts are no longer made.

Book a backflow test

Backflow Test Due in Saint Petersburg, FL? Call now.

Certified testers for backflow testing in Saint Petersburg, FL. 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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