G Grizzly Backflow & Plumbing
Norman, OK · 73019 Local testers · Utility reports filed

Annual Backflow Testing in Norman, OK Near Me

Annual backflow testing in Norman, OK for homes and businesses, with readings recorded on your water utility's form. Call (833) 990-5874.

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Annual Backflow Testing in Norman, OK
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(833) 990-5874
Certified testers
Reports filed with your utility
RPZ, DCVA and PVB
Price talked through by phone

Annual Backflow Testing in Norman, OK

Your water utility mailed a notice. It names a device, a serial number and a due date. That letter is the start of annual backflow testing, and Grizzly Backflow & Plumbing connects you with a local tester in Norman, OK who can handle it.

The tester closes the downstream shutoff, hooks a differential pressure gauge to the test cocks and reads each check valve in turn. On a double check, each check has to hold at least 1.0 psid. On an RPZ, the relief valve has to open at no less than 2.0 psid. The numbers go on the report exactly as read.

Most residential tests take about half an hour, and your water is off for part of it. Commercial assemblies take longer, especially 4 inch and larger devices.

If the device passes, the report gets filed. If it fails, you get the reason in plain words and the options: repair, rebuild or replace.

Backflow prevention only works when the device is checked on schedule. Call Grizzly Backflow & Plumbing at (833) 990-5874 to book your test in Norman, OK.

How it works

Four steps to backflow testing in Norman, OK

  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 Norman, OK

Backflow testing for the neighborhoods and ZIP codes around Norman, OK.

Neighborhoods we cover for backflow testing

  • Campus Corner
  • Downtown Norman
  • Hall Park
  • Moore
  • Noble

ZIP codes we serve

73019 73026 73069 73070 73071 73072

Backflow testing FAQs

Questions about backflow testing

Questions we hear most often about Annual Backflow Testing in Norman, OK.

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.
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.
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.
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 Norman, OK? Call now.

Certified testers for backflow testing in Norman, OK. 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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