G Grizzly Backflow & Plumbing
Denver, CO · 80202 Local testers · Utility reports filed

Double Check Valve Testing in Denver, CO Near Me

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

Call (833) 990-5874 More services
Double Check Valve Testing in Denver, CO
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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 Denver, CO

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 Denver, CO 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 Denver, CO

  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 Denver, CO

Backflow testing for the neighborhoods and ZIP codes around Denver, CO.

Neighborhoods we cover for backflow testing

  • Capitol Hill
  • Highland
  • LoDo
  • Cherry Creek
  • RiNo
  • Baker
  • Washington Park
  • Five Points
  • Park Hill
  • Stapleton
  • Montclair
  • Sunnyside

ZIP codes we serve

80202 80203 80204 80205 80206 80207 80209 80210 80211 80212 80214 80215 80216 80218 80219 80220 80221 80222 80223 80224 80226 80227 80228 80229 80230 80231 80232 80233 80234 80235 80236 80237 80238 80239 80246 80247 80249 80260 80264 80266 80290 80293 80294

Backflow testing FAQs

Questions about backflow testing

Questions we hear most often about Double Check Valve Testing in Denver, CO.

Talk to a person
How often does a backflow preventer need testing in Denver, CO?
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.
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 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.
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.
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 Denver, CO? Call now.

Certified testers for backflow testing in Denver, CO. 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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