Why Sunnyvale requires an irrigation backflow test
Sprinkler heads sit in soil, fertilizer, and pet waste. If pressure in the Sunnyvale main drops — a hydrant flush, a water main break — water can be siphoned backward out of your yard and into the drinking water system. The backflow assembly on your irrigation line prevents that, and Town of Sunnyvale Public Works requires proof each year that it still works.
Where your assembly is and what we do
Most Sunnyvale homes have a double check or pressure vacuum breaker assembly near the water meter, in a green in-ground box, or above ground close to the house. Our technician isolates it, tests each check with calibrated gauges, notes the results, and restores the system. You do not have to be home — just leave the gate unlocked or send a gate code. On-site time is typically 20 to 30 minutes.
Freeze damage and failed assemblies in Sunnyvale
The most common failure we see in Sunnyvale is a cracked bonnet or split body from a hard freeze, followed by debris fouling a check. We carry common irrigation parts, so a failed test often becomes a same-visit repair and re-test. Once it passes, we submit the report to Town of Sunnyvale Public Works and you are done for another year.
What irrigation backflow testing looks like in Sunnyvale
Irrigation is the core Sunnyvale service, and the large-lot zoning is why: ten-to-fifteen-zone systems that run hard and wear an assembly faster than a quarter-acre lot would. Where a pond feeds part of the system, reduced pressure protection is required and we confirm the source before testing.
Sunnyvale water authority: Town of Sunnyvale Public Works
Sunnyvale has protected large-lot zoning for decades, which makes it unusual for eastern Dallas County: half-acre and larger properties, heavy landscaping, ponds, and a rural feel a few minutes from I-30. That means big multi-zone irrigation systems, frequent pond and well draws that raise the hazard class, and a light commercial footprint along Highway 80 and Collins Road. The town distributes water and keeps its own cross-connection records.
We submit your passing irrigation backflow testing report directly to Town of Sunnyvale Public Works — no paperwork on your end. Town of Sunnyvale Public Works keeps the cross-connection records, and ponds or wells used for irrigation are treated as auxiliary supplies requiring a reduced pressure principle assembly on the town service.
Irrigation Backflow Testing across Sunnyvale, TX
Our Sunnyvale technicians cover large-lot residential with multi-zone irrigation, pond and well properties, Sunnyvale ISD and church campuses, and light Highway 80 commercial throughout Dallas County, including Town East Boulevard corridor, Collins Road, Stoneleigh on Long Creek, Tripp Road acreage, Highway 80 frontage. If your property is inside Sunnyvale city limits, we can be there — most Sunnyvale appointments are booked within one business day.
Sunnyvale ZIP codes served
- 75182
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