Irrigation · Nashville, TN
Backflow Testing & Certification in Nashville
Annual testing and certification, which most Middle Tennessee utilities require on any irrigation connection.
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Backflow Testing & Certification in Nashville, Tennessee
Annual testing and certification, which most Middle Tennessee utilities require on any irrigation connection.
Nashville's Irrigation does backflow testing & certification for homeowners across Middle Tennessee — licensed, insured, with the price in writing before the work starts. Irrigation contractors who design by zone, set the controller for Tennessee weather, and test the backflow the utility requires.
Why homeowners call
Signs a system needs this work
- Dry patches no matter how long it runs
- Heads watering the driveway
- Water bill jumped suddenly
- Zone stopped working entirely
- Yard holds water after rain
- Never been winterized
What is included
Parts and tests in backflow testing & certification
- Annual certified backflow testing
- Certification filed with your utility
- Repair or replacement of failed assemblies
- Freeze-damaged assemblies diagnosed and replaced
- Insulation and protection ahead of winter
- Records kept so the renewal is not missed
How backflow testing & certification goes, zone by zone
Most Middle Tennessee utilities require a backflow preventer on any irrigation connection and a certified annual test on it. It exists because an irrigation line is a direct path from standing yard water into the drinking supply, and it is not paperwork for its own sake.
Freeze damage is the most common failure here. A short hard freeze on an assembly that was not drained or insulated will crack the body, and that is a replacement rather than a repair.
Also available
More irrigation and drainage work
New Sprinkler Systems
Designed zone by zone for head-to-head coverage, your water pressure and the way your yard actually drains.
Learn moreSprinkler Repair
Broken heads, cut lines, stuck valves, wiring faults and the dry patches that are really coverage problems.
Learn moreControllers & Smart Watering
Weather-based controllers programmed for Tennessee seasons instead of the factory default that waters daily.
Learn moreDrainage & French Drains
Yard drains, French drains, downspout tie-ins and regrading for ground that holds water or sends it at the house.
Learn moreWinterization & Spring Start-Up
Blow-outs before the first hard freeze and a full system check and adjustment when it comes back on.
Learn moreService area
Lawns we water across Middle Tennessee
Technicians cover Nashville along with 64 more towns in 12 counties; yards anywhere in Middle Tennessee no more than about an hour out of Nashville are on our map.
FAQ
People ask us about backflow testing & certification
Why do I have to have my backflow tested every year?
Because the utility requires it — the device is what keeps your irrigation water out of the public supply, and a failed one is a public health issue. Testing takes half an hour, the certificate is filed with the utility, and a device that fails is repaired or replaced. Letting it lapse usually ends with a notice and, eventually, a disconnection.
Why does my backflow preventer leak or spray water?
Debris in the check valves, a failed seal, or freeze damage — a backflow device that was not drained before a hard freeze splits. A device that is spraying from the relief port is doing its job and telling you a check has failed. It is repaired with a rebuild kit or replaced, and in winter it is insulated or drained.
Free estimate
Have us walk the zones for backflow testing & certification
Tell Nashville's Irrigation what the system is doing and how big the yard is, and we put a written estimate in your inbox at no charge. Nothing is owed until you agree to the work.