G Grizzly Backflow & Plumbing
Walled Lake, MI · 48390 Local testers · Utility reports filed

Double Check Valve Testing in Walled Lake, MI Near Me

Double check valve assembly testing in Walled Lake, MI for low-hazard and fire line connections. Call (833) 990-5874 to schedule.

Call (833) 990-5874 More services
Double Check Valve Testing in Walled Lake, MI
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(833) 990-5874
Certified testers
Reports filed with your utility
RPZ, DCVA and PVB
Price talked through by phone

Double Check Valve Testing in Walled Lake, MI

A double check valve assembly, or DCVA, has two independent spring-loaded checks between two resilient-seated shutoffs and four test cocks. It is approved for low-hazard connections, so you see it on many fire lines, apartment services and some irrigation systems.

The tester bleeds and reads each check separately. Each one has to hold a differential of at least 1.0 psid. If a check reads lower, the cause is usually a worn rubber disc, a weak spring or debris across the seat.

Unlike an RPZ, a DCVA can be installed in a pit or vault in many jurisdictions, which brings its own problems. Flooded vaults make test cocks hard to reach and corrode the bolts. Testers often pump the vault before they can start.

Grizzly Backflow & Plumbing connects you with local testers in Walled Lake, MI for double check valve testing, report filing with your purveyor and repair if a check fails. Good backflow prevention depends on both checks holding, not one. Call (833) 990-5874.

How it works

Four steps to backflow testing in Walled Lake, MI

  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 Walled Lake, MI

Backflow testing for the neighborhoods and ZIP codes around Walled Lake, MI.

Neighborhoods we cover for backflow testing

  • Walled Lake Center

ZIP codes we serve

48390

Backflow testing FAQs

Questions about backflow testing

Questions we hear most often about Double Check Valve Testing in Walled Lake, MI.

Talk to a person
How often does a backflow preventer need testing in Walled Lake, MI?
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.
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.
How much does backflow testing cost in Walled Lake, MI?
Pricing depends on device type, size and the local market. Call (833) 990-5874 for current pricing on backflow testing in Walled Lake, MI.
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.

Book a backflow test

Backflow Test Due in Walled Lake, MI? Call now.

Certified testers for backflow testing in Walled Lake, MI. 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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