Question 1

What is backflow?

Accepted Answer

Backflow is the unwanted reversal of water flow that can pull contaminants from any location back into your drinking-water distribution pipes. It usually happens when there's a drop in water pressure (back-siphonage) or excess downstream pressure (back-pressure).

Question 2

What is a backflow assembly?

Accepted Answer

A backflow preventer (or assembly) is a plumbing device installed to stop contaminated water from flowing backward into the clean water supply. When properly installed, tested, and maintained, these devices protect your community's drinking water.

Question 3

Am I required to have a backflow assembly?

Accepted Answer

In most cases, yes. Cross-connection control through backflow prevention is required for irrigation water meters, multi-family housing, fire lines, and nearly all commercial and industrial properties. Your local water purveyor sets the specific requirements.

Question 4

How often does my backflow device need to be tested?

Accepted Answer

Most Northern California water purveyors require a certified backflow test every 12 months. High-hazard installations may require more frequent testing. We track your due date and remind you before it lapses.

Question 5

Who can test my backflow assembly?

Accepted Answer

Backflow assemblies must be tested by a certified backflow assembly tester using calibrated equipment. All Pro Backflow's technicians are AWWA-certified, and we file your results directly with your water district.

Question 6

What happens if my backflow device fails the test?

Accepted Answer

We'll explain exactly what failed and provide a repair quote on the spot. In most cases we carry the parts to rebuild common assemblies the same day, then re-test and file the passing result with your water purveyor.

Question 7

How much does backflow testing or repair cost?

Accepted Answer

Cost depends on the number, size, and type of devices and your location. We provide free estimates and competitive, flat-rate pricing — call 916-276-7162 and we'll give you a number over the phone.

Question 8

Why is backflow dangerous?

Accepted Answer

When contaminated water reverses into the clean supply, it can carry fertilizers, chemicals, bacteria, and other hazards into the water people drink. A working backflow preventer is often the only barrier protecting your water — which is why testing and repairs are taken so seriously.

Question 9

Do you protect devices from freezing and theft?

Accepted Answer

Yes. We supply and install insulated freeze covers and freeze bags to prevent freeze damage, plus steel security cages and enclosures to deter vandalism and metal theft.

Question 10

Do you offer emergency service?

Accepted Answer

Yes — we provide 24/7 emergency backflow service across Northern California, including weekends and holidays. Call 916-276-7162 any time for leaking, burst, frozen, or stolen devices.

Question 11

Where can I buy backflow parts or freeze bags?

Accepted Answer

Our sister company, The Backflow Depot, stocks repair parts, complete assemblies, test equipment, and USA-made freeze bags in 50+ sizes with same-day shipping. All Pro Backflow handles the service; The Backflow Depot handles the parts.

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