G Grizzly Backflow & Plumbing
Towson, MD · 21204 Local testers · Utility reports filed

PVB Testing in Towson, MD Near Me

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

Call (833) 990-5874 More services
PVB Testing in Towson, MD
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(833) 990-5874
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RPZ, DCVA and PVB
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PVB Testing in Towson, MD

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 Towson, MD homeowners with testers for PVB testing and backflow prevention repairs. Call (833) 990-5874.

How it works

Four steps to backflow testing in Towson, MD

  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 Towson, MD

Backflow testing for the neighborhoods and ZIP codes around Towson, MD.

Neighborhoods we cover for backflow testing

  • Towson
  • Rodgers Forge
  • Stoneleigh
  • West Towson
  • Ruxton

ZIP codes we serve

21204 21252 21285 21286

Backflow testing FAQs

Questions about backflow testing

Questions we hear most often about PVB Testing in Towson, MD.

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.
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 Towson, MD?
Pricing depends on device type, size and the local market. Call (833) 990-5874 for current pricing on backflow testing in Towson, MD.
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.
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 Towson, MD? Call now.

Certified testers for backflow testing in Towson, MD. 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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