G Grizzly Backflow & Plumbing
Dallas, TX · 75201 Local testers · Utility reports filed

RPZ Valve Testing in Dallas, TX Near Me

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

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RPZ Valve Testing in Dallas, TX
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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 Dallas, TX

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 Dallas, TX 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 Dallas, TX

  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 Dallas, TX

Backflow testing for the neighborhoods and ZIP codes around Dallas, TX.

Neighborhoods we cover for backflow testing

  • Downtown Dallas
  • Uptown Dallas
  • Oak Lawn
  • Deep Ellum
  • Bishop Arts District
  • Lake Highlands
  • East Dallas
  • North Dallas

ZIP codes we serve

75201 75202 75203 75204 75205 75206 75207 75208 75209 75210 75211 75212 75214 75215 75216 75217 75218 75219 75220 75223 75224 75225 75226 75227 75228 75229 75230 75231 75232 75233 75234 75235 75236 75237 75238 75240 75241 75243 75244 75246 75247 75248 75249 75251 75252 75253 75254 75261 75270 75287 75390

Backflow testing FAQs

Questions about backflow testing

Questions we hear most often about RPZ Valve Testing in Dallas, TX.

Talk to a person
Who is allowed to test my backflow device?
A tester who holds a backflow tester certification recognized by your state or your water utility. Many utilities keep an approved tester list and reject reports signed by anyone not on it.
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.
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.
What is a cross-connection?
Any point where drinking water piping can come into contact with a non-potable source. Common examples are a hose in a bucket, a boiler fill line and an irrigation system.
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 Dallas, TX? Call now.

Certified testers for backflow testing in Dallas, TX. 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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