G Grizzly Backflow & Plumbing
Mobile, AL · 36602 Local testers · Utility reports filed

Thermal Expansion Tank Tie-In in Mobile, AL Near Me

Thermal expansion tank tie-in in Mobile, AL after a backflow preventer or check valve closes your water system. Call (833) 990-5874.

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Thermal Expansion Tank Tie-In in Mobile, AL
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Thermal Expansion Tank Tie-In in Mobile, AL

Install a backflow preventer on a home's main line and you have created a closed system. When the water heater runs, heated water expands and has nowhere to go. Pressure climbs until the temperature and pressure relief valve on the heater, set at 150 psi, starts to weep.

A thermal expansion tank fixes that. It is a small steel tank with an air bladder, tied into the cold supply near the heater. The bladder absorbs the expansion.

The detail people skip is the air charge. The tank has to be pre-charged to match your static water pressure, checked with a tire gauge before it goes on. A tank left at the factory 40 psi on a 70 psi system does very little.

Sizing depends on heater capacity and water pressure. A 40 or 50 gallon heater usually takes a 2 gallon tank.

Grizzly Backflow & Plumbing connects Mobile, AL homeowners with plumbers who tie in expansion tanks as part of backflow prevention work. Call (833) 990-5874.

How it works

Four steps to backflow testing in Mobile, AL

  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 Mobile, AL

Backflow testing for the neighborhoods and ZIP codes around Mobile, AL.

Neighborhoods we cover for backflow testing

  • Downtown Mobile
  • Spring Hill
  • Dauphin Island
  • Midtown
  • West Mobile

ZIP codes we serve

36602 36603 36604 36605 36606 36607 36608 36609 36610 36611 36612 36615 36617 36618 36619 36652 36663 36688 36693 36695

Backflow testing FAQs

Questions about backflow testing

Questions we hear most often about Thermal Expansion Tank Tie-In in Mobile, AL.

Talk to a person
How often does a backflow preventer need testing in Mobile, AL?
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.
Does my lawn sprinkler system in Mobile, AL 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.
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.
How much does backflow testing cost in Mobile, AL?
Pricing depends on device type, size and the local market. Call (833) 990-5874 for current pricing on backflow testing in Mobile, AL.

Book a backflow test

Backflow Test Due in Mobile, AL? Call now.

Certified testers for backflow testing in Mobile, AL. 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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