G Grizzly Backflow & Plumbing
Jacksonville, FL · 32202 Local testers · Utility reports filed

RPZ Valve Testing in Jacksonville, FL Near Me

RPZ (reduced pressure zone) valve testing in Jacksonville, FL for high-hazard water connections. Relief valve and both checks tested. Call (833) 990-5874.

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RPZ Valve Testing in Jacksonville, FL
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(833) 990-5874
Certified testers
Reports filed with your utility
RPZ, DCVA and PVB
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RPZ Valve Testing in Jacksonville, FL

An RPZ, or reduced pressure zone assembly, protects the public water main from high-hazard connections: boiler feeds, chemical injection, car washes, medical and dental offices, and irrigation with fertilizer injection.

The test has three parts. First the tester checks that the relief valve opens at 2.0 psid or more. Then the first check is read, and it usually holds a differential of 5 psid or higher. Last, the second check is tested for tightness against backpressure.

A dripping relief port is the classic RPZ complaint. Most of the time a pebble or scale from a recent main break is holding the first check open. Sometimes the relief diaphragm itself has torn.

RPZ assemblies must sit above grade with open air under the relief port. One buried in a pit can flood and siphon dirty water back, which is why most codes forbid it.

Grizzly Backflow & Plumbing connects Jacksonville, FL property owners with testers who handle RPZ valve testing and backflow prevention paperwork for brands like Watts, Febco, Wilkins and Ames. Call (833) 990-5874.

How it works

Four steps to backflow testing in Jacksonville, 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 Jacksonville, FL

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

Neighborhoods we cover for backflow testing

  • Downtown Jacksonville
  • Riverside
  • San Marco
  • Avondale
  • Springfield
  • Mandarin
  • Arlington

ZIP codes we serve

32202 32203 32204 32205 32206 32207 32208 32209 32210 32211 32212 32214 32216 32217 32218 32219 32220 32221 32222 32223 32224 32225 32226 32227 32228 32234 32244 32246 32254 32256 32257 32258 32277

Backflow testing FAQs

Questions about backflow testing

Questions we hear most often about RPZ Valve Testing in Jacksonville, FL.

Talk to a person
How often does a backflow preventer need testing in Jacksonville, FL?
Most water utilities require a test once a year. Many also require one at installation, after any repair and after the device is moved. Your utility's notice letter gives the exact due date.
Does my lawn sprinkler system in Jacksonville, FL 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.
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.
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 Jacksonville, FL? Call now.

Certified testers for backflow testing in Jacksonville, 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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