Backflow Testing & Prevention in Tempe, AZ
The City of Tempe requires annual backflow testing for most properties with a prevention assembly, and it's the property owner's responsibility to keep it current.
A backflow prevention assembly stops contaminated water from being pulled backward into the clean water supply, a real risk anywhere a property connects to irrigation, a pool, or certain commercial equipment. According to the City of Tempe's own backflow prevention program under City Code Chapter 37, most properties with an assembly are required to have it tested annually, with the property owner responsible for scheduling that test and submitting results.
The City typically sends a notice of the test due date through the monthly utility bill about 60 days ahead of time, but the responsibility to actually get it tested and keep the assembly in working order sits with the property owner, not the City.
When a Backflow Assembly Is Required
Irrigation Systems
Properties with an irrigation system connection are a common category requiring backflow protection and annual testing.
Pools
Given how common pools are in Tempe, pool-related connections are another frequent category requiring a tested assembly.
Commercial Properties
Restaurants and other commercial properties with certain equipment connections often require higher-hazard reduced pressure zone assemblies.
Fire Sprinkler Systems
Properties with fire sprinkler systems have their own backflow testing requirement, including a full flow test performed by a certified tester.
The Annual Test Process
Certified Testing
Testing is performed with calibrated equipment by a certified tester, checking that the assembly's valves are functioning correctly.
Results Submitted To The City
Test results are submitted to the City as part of the compliance requirement, not just kept on file privately.
Repairs If Needed
An assembly that fails testing needs repair or replacement before it's back in compliant, satisfactory condition.
Installation & Permits
New assembly installations require a permit through Tempe's Building Safety Division, which we handle.
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What This Actually Costs
Every quote is confirmed in writing before we start. Real factors that affect price:
Free estimates are available for non-emergency work, and pricing is confirmed before any emergency repair begins.
Common Questions
Yes, under City Code Chapter 37, most properties with a backflow prevention assembly are required to have it tested annually, with the property owner responsible for scheduling and submitting results.
The City typically sends a notice about 60 days ahead of the due date through your monthly utility bill, though it remains your responsibility to schedule the test regardless.
It needs to be repaired or replaced until it's back in satisfactory operating condition, and results have to be resubmitted showing it passes.
It depends on your specific connections. Pools, certain commercial equipment, and fire sprinkler systems are other common categories that require one even without an irrigation system.
Yes, free estimates are available for new installations; annual testing itself is a standard, flat-rate service.
No, testing has to be performed by a certified tester using calibrated equipment, and the results submitted to the City as part of the compliance requirement.
Compliance is ultimately the property owner's responsibility regardless of whether the City's reminder notice was received, so it's worth tracking the due date independently rather than relying solely on the utility bill notice.
Often Comes Up Together
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