G Grizzly Backflow & Plumbing
San Antonio, TX · 78201 Local testers · Utility reports filed

PVB Testing in San Antonio, TX Near Me

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

Call (833) 990-5874 More services
PVB Testing in San Antonio, TX
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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 San Antonio, TX

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 San Antonio, TX homeowners with testers for PVB testing and backflow prevention repairs. Call (833) 990-5874.

How it works

Four steps to backflow testing in San Antonio, TX

  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 San Antonio, TX

Backflow testing for the neighborhoods and ZIP codes around San Antonio, TX.

Neighborhoods we cover for backflow testing

  • Alamo Heights
  • King William
  • Southtown
  • Downtown

ZIP codes we serve

78201 78202 78203 78204 78205 78207 78208 78209 78210 78211 78212 78213 78214 78215 78216 78217 78218 78219 78220 78221 78222 78223 78224 78225 78226 78227 78228 78229 78230 78231 78232 78233 78235 78237 78238 78239 78240 78242 78243 78244 78245 78247 78248 78249 78250 78251 78252 78253 78254 78255 78256 78257 78258 78259 78260 78261 78263 78264 78266

Backflow testing FAQs

Questions about backflow testing

Questions we hear most often about PVB Testing in San Antonio, TX.

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.
Will my water be off during the test?
Yes, briefly. The tester closes the shutoff valves on the assembly while reading the checks, so water downstream of the device is off until the test is done.
Does my lawn sprinkler system in San Antonio, TX need a backflow preventer?
Almost every US plumbing code requires one on irrigation, since fertilizer, pesticide and standing water at the heads can siphon back. The device type depends on local code and how the system is laid out.
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.
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 San Antonio, TX? Call now.

Certified testers for backflow testing in San Antonio, TX. 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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