G Grizzly Backflow & Plumbing
Chicago, IL · 60601 Local testers · Utility reports filed

RPZ Valve Testing in Chicago, IL Near Me

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

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RPZ Valve Testing in Chicago, IL
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(833) 990-5874
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Reports filed with your utility
RPZ, DCVA and PVB
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RPZ Valve Testing in Chicago, IL

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 Chicago, IL 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 Chicago, IL

  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 Chicago, IL

Backflow testing for the neighborhoods and ZIP codes around Chicago, IL.

Neighborhoods we cover for backflow testing

  • Lincoln Park
  • Wicker Park
  • Lakeview
  • Hyde Park
  • Logan Square
  • West Loop
  • South Loop
  • Uptown
  • Andersonville
  • Bridgeport
  • Pilsen
  • Rogers Park
  • Edgewater
  • Albany Park
  • Avondale
  • North Center
  • Irving Park
  • Portage Park
  • Jefferson Park
  • Dunning
  • Austin
  • Garfield Park
  • Chatham
  • Beverly

ZIP codes we serve

60601 60602 60603 60604 60605 60606 60607 60608 60609 60610 60611 60612 60613 60614 60615 60616 60617 60618 60619 60620 60621 60622 60623 60624 60625 60626 60628 60629 60630 60631 60632 60633 60634 60636 60637 60638 60639 60640 60641 60642 60643 60644 60645 60646 60647 60649 60651 60652 60653 60654 60655 60656 60657 60659 60660 60661

Backflow testing FAQs

Questions about backflow testing

Questions we hear most often about RPZ Valve Testing in Chicago, IL.

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.
Why is water dripping from my RPZ relief valve?
A steady drip usually means debris is holding the first check open or the relief valve diaphragm is worn. A cleaning or a rebuild kit fixes most cases.
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 Chicago, IL? Call now.

Certified testers for backflow testing in Chicago, IL. 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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