G Grizzly Backflow & Plumbing
Portland, OR · 97201 Local testers · Utility reports filed

PVB Testing in Portland, OR Near Me

PVB (pressure vacuum breaker) testing in Portland, OR for lawn sprinklers and irrigation lines. Call (833) 990-5874.

Call (833) 990-5874 More services
PVB Testing in Portland, OR
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(833) 990-5874
Certified testers
Reports filed with your utility
RPZ, DCVA and PVB
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PVB Testing in Portland, OR

The pressure vacuum breaker, or PVB, is the brass device sticking out of the ground near your sprinkler system with a bonnet on top and two small test cocks. It is the most common backflow preventer on residential irrigation.

A PVB test checks two things. The air inlet has to open when pressure in the body drops to about 1.0 psi. The check valve has to hold at least 1.0 psid in the direction of flow.

The usual failures are a cracked bonnet from a freeze, a stuck poppet, or a check that leaks because the rubber has gone hard after years in the sun. Water spitting out from under the canopy when the system starts is a sign the poppet is not seating.

A PVB must sit at least 12 inches above the highest sprinkler head it serves. If yours is lower, it may not pass inspection even with good readings.

Grizzly Backflow & Plumbing connects Portland, OR homeowners with testers for PVB testing and backflow prevention repairs. Call (833) 990-5874.

How it works

Four steps to backflow testing in Portland, OR

  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 Portland, OR

Backflow testing for the neighborhoods and ZIP codes around Portland, OR.

Neighborhoods we cover for backflow testing

  • Pearl District
  • Hawthorne
  • Alberta Arts District
  • Sellwood-Moreland
  • Mississippi District
  • Division-Richmond
  • Nob Hill
  • Laurelhurst
  • Irvington
  • Woodstock

ZIP codes we serve

97201 97202 97203 97204 97205 97206 97208 97209 97210 97211 97212 97213 97214 97215 97216 97217 97218 97219 97220 97221 97222 97223 97224 97225 97227 97229 97230 97231 97232 97233 97236 97239 97266 97267

Backflow testing FAQs

Questions about backflow testing

Questions we hear most often about PVB Testing in Portland, OR.

Talk to a person
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.
What does a failed backflow test mean?
A check valve or the relief valve did not hold its required pressure differential. The device needs repair or replacement, then a retest before a passing report can be filed.
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.
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 Portland, OR? Call now.

Certified testers for backflow testing in Portland, OR. 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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