G Grizzly Backflow & Plumbing
Dayton, OH · 45402 Local testers · Utility reports filed

RPZ Valve Testing in Dayton, OH Near Me

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

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RPZ Valve Testing in Dayton, OH
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(833) 990-5874
Certified testers
Reports filed with your utility
RPZ, DCVA and PVB
Price talked through by phone

RPZ Valve Testing in Dayton, OH

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 Dayton, OH 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 Dayton, OH

  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 Dayton, OH

Backflow testing for the neighborhoods and ZIP codes around Dayton, OH.

Neighborhoods we cover for backflow testing

  • Downtown Dayton
  • Oregon District
  • South Park
  • University Row

ZIP codes we serve

45402 45403 45404 45405 45406 45409 45410 45414 45415 45416 45417 45419 45420 45423 45424 45426 45428 45429 45430 45431 45432 45433 45434 45435 45439 45440 45449 45458 45459 45469

Backflow testing FAQs

Questions about backflow testing

Questions we hear most often about RPZ Valve Testing in Dayton, OH.

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.
What happens if I miss the backflow test deadline?
Utilities usually send a second notice, and after that some add a fee or schedule a service shutoff. Calling (833) 990-5874 before the deadline is the simplest way to avoid it.
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.
How much does backflow testing cost in Dayton, OH?
Pricing depends on device type, size and the local market. Call (833) 990-5874 for current pricing on backflow testing in Dayton, OH.

Book a backflow test

Backflow Test Due in Dayton, OH? Call now.

Certified testers for backflow testing in Dayton, OH. 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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