Annual Backflow Testing
Magic Valley, Idaho
State-mandated annual testing by a licensed Backflow Assembly Tester. Allen handles the test, certification, and city paperwork — one call, done.
Why Testing Is Required
Backflow preventers protect your city's drinking water from contamination. When irrigation system pressure drops — from a burst main, fire hydrant use, or pipe break — water can flow backward through your backflow assembly and into the public water supply.
Idaho law and most Magic Valley city ordinances require annual testing by a licensed Backflow Assembly Tester (BAT) to verify these assemblies are working properly.
Allen is licensed under Idaho DOPL and submits all test reports directly to your city water authority. You do nothing after the call but stay on the water.
Pricing
Per assembly
No additional fees
After repair
$50 minimum
Prices as of 2026. Multiple assembly discount available — ask Allen.
2026 Deadlines by City
| City | Annual Deadline | Consequence |
|---|---|---|
| Twin Falls | June 30 | Water shutoff for non-compliance |
| Jerome | June 1 | Service interruption after deadline |
| Gooding | July 1 | Fine + mandatory re-test |
| Shoshone | Call to confirm | Varies by water authority |
| Kimberly / Buhl / Filer | Call to confirm | Varies by water authority |
Deadlines change yearly. Allen verifies your city's current requirement before scheduling.
What Happens During a Test
Allen arrives at your property
No need to be home in most cases — Allen just needs access to the backflow preventer, usually at the meter or hose bib.
Differential pressure gauge test
Allen uses calibrated test equipment to measure the pressure differential across the assembly check valves and relief valve.
Pass or fail recorded
If the assembly passes, Allen fills out the official test report. If it fails, he'll explain the repair options on the spot.
City submittal done for you
Allen submits your test results directly to the city water authority — Twin Falls, Jerome, Gooding, wherever you are. You get a copy.
Who Is Required to Test?
Not sure if your property needs testing? Call Allen— he'll confirm in under 2 minutes.
Cities Served
Book Your Backflow Test
$50 test · city submittal included · licensed BAT technician. Call Allen to schedule in Twin Falls, Jerome, Gooding, or anywhere in Magic Valley.
Licensed BAT Technician · Fully Insured · Shoshone, ID