G Grizzly Backflow & Plumbing
Houston, TX · 77002 Local testers · Utility reports filed

Double Check Valve Testing in Houston, TX Near Me

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

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

Double Check Valve Testing in Houston, TX

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 Houston, TX 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 Houston, 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 Houston, TX

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

Neighborhoods we cover for backflow testing

  • Montrose
  • River Oaks
  • Heights
  • Midtown
  • Downtown

ZIP codes we serve

77002 77003 77004 77005 77006 77007 77008 77009 77010 77011 77012 77013 77014 77015 77016 77017 77018 77019 77020 77021 77022 77023 77024 77025 77026 77027 77028 77029 77030 77031 77032 77033 77034 77035 77036 77037 77038 77039 77040 77041 77042 77043 77044 77045 77046 77047 77048 77049 77050 77051 77053 77054 77055 77056 77057 77058 77059 77060 77061 77062 77063 77064 77065 77066 77067 77068 77069 77070 77071 77072 77073 77074 77075 77076 77077 77078 77079 77080 77081 77082 77083 77084 77085 77086 77087 77088 77089 77090 77091 77092 77093 77094 77095 77096 77098 77099 77204

Backflow testing FAQs

Questions about backflow testing

Questions we hear most often about Double Check Valve Testing in Houston, TX.

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.
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.
How long does a backflow test take?
A residential PVB or double check test usually takes 20 to 30 minutes. Large commercial and fire line assemblies take longer.
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.

Book a backflow test

Backflow Test Due in Houston, TX? Call now.

Certified testers for backflow testing in Houston, 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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