What Is Backflow Testing Washington State? (Question)

The purpose of the Backflow Assembly Tester (BAT) certification program is to protect the health of the citizens of the state of Washington. Backflow assemblies must get tested (when installed and annually after that) to make sure they work properly.

How do I become a backflow Assembly tester in Washington State?

  • As of January 1, 2013, to test assemblies in Washington State, certified Backflow Assembly Testers (BAT’s) must: Have passed the hands-on exam based on USC’s Tenth Edition test procedures. Use only USC’s Tenth Edition test procedures in the field.

What is involved in backflow testing?

The testing process involves using valves on the backflow testing device, known as gate and relief valves. Essentially the plumber will be closing valves and checking for changes in gauge movement, water leaks and other clear signs.

Is backflow testing necessary?

You must get your backflow tested every year. If your backflow prevention device is not working correctly, it must be repaired or replaced immediately, or you may risk contaminating your potable water supply.

How often do you need to do backflow testing?

How often does my backflow preventer need to be tested? Reduced Pressure Zone (RPZ) assembly needs to be tested annually and rebuilt every 5 years. Double Check Valve (DCV) assembly needs to be tested every 3 years.

Why is backflow testing important?

The primary reason why backflow testing is essential is because of health concerns. If water travels backward, contaminants from the sewer system can pollute it. In a home setting, this is extremely dangerous because you could end up drinking polluted water, which poses a risk to your health.

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What happens if backflow occurs?

When backflow occurs, it can get worse over time and it can change the heart’s size and raise pressure in the left atrium and lungs. Backflow also raises the risk of heart valve infections. Medicines can treat troublesome MVP symptoms and help prevent complications.

What does backflow mean in plumbing?

Unlike blockages, which simply stop the flow of wastewater down pipes, backflow is the active movement of wastewater up into the fresh water supply, which occurs either because of excess pressure on sewer side, or a drop in pressure on the fresh water side.

What is annual backflow test?

Annual backflow testing ensures that your assembly is working properly to keep harmful bacteria, heavy metals, chemicals, and other contaminants out of your potable water.

How much does it cost to install a backwater valve?

Installing during the initial construction is naturally much cheaper, and can be installed for between $150 to $250. When retrofitting, some concrete will need to be removed to access the main sewer line. The cost to retrofit a backwater valve can range from $1,000 to $2,000.

What is backflow certification?

Backflow testing is a process that is used to test your plumbing system to make sure that drinking water is not being contaminated by dirty water infiltrating the water supply.

What happens when a backflow preventer fails?

When the backflow preventer fails to meet this minimum standard, the backflow preventer must be repaired or if necessary, replaced. These minimum standards are set at a level that as the backflow prevention assembly begins to deteriorate in its performance, it can still prevent backflow.

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Where is the backwater valve located?

Backwater valves are usually located in the floor of your basement. If you know where to find your sump pump, the backwater valve is probably nearby. There may be a rectangular panel on top, but often the compartment itself is clear so that you can see inside relatively easily and the round cap can be removed.

What is the purpose of a backflow valve?

A backflow preventer valve is designed to prevent the water in your main water supply lines from flowing in a reverse direction. The valve will distribute the sanitary water from the main supply pipes to the water lines beneath your foundation.

Where is the backflow preventer located?

Where is the Backflow Preventer Located? You should have your backflow prevention assembly installed inside an above-ground enclosure. It’s the safest and most cost-effective place to put it.

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