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Backflow prevention testing and repair
A backflow preventer is tested to confirm it closes correctly under pressure, and repaired or replaced if it fails, keeping contaminated water from being pulled back into the clean supply.
What is a backflow preventer and why does it need annual testing?
A backflow preventer is a valve assembly that stops water from flowing backward into the clean municipal supply, which matters most on an irrigation system, since fertilizer, soil and standing water in the sprinkler lines could otherwise be pulled back toward the drinking water system under certain pressure conditions, such as a sudden drop in municipal line pressure.
Most municipalities in Broward County, including Hollywood, require annual testing of backflow preventers on irrigation and certain commercial systems, performed by a certified tester and reported to the local utility. A device that fails testing needs to be repaired or replaced before it is considered compliant again, and the property stays on record as due until that happens, since the local utility tracks compliance by device rather than by owner, regardless of who has moved in or out of the property since the last test.
When to check
Situations that call for backflow service
Annual testing is due
Most municipal requirements call for testing once a year.
Water leaking from the device itself
A sign the assembly is not sealing correctly.
A failed test result from a previous inspection
Needs repair or replacement to come back into compliance.
Installing a new irrigation system
A backflow preventer is required as part of the installation.
What testing involves
A straightforward annual requirement
Testing checks that the internal check valves close fully under pressure and that the device is not letting water pass in the wrong direction. It is a routine visit in most cases, and the results are documented for the property’s records and, where required, submitted to the local utility on the property owner’s behalf.
A device that fails is either repairable, if the issue is a worn internal part, or needs replacement if the assembly itself has failed. Either way, the property is not left non-compliant without a plan to fix it, and the retest is scheduled once the repair or replacement is complete.
Why it is required
What a backflow preventer actually does, and Florida’s testing rule
A backflow preventer exists to stop water that has already left the supply line, and picked up contact with a hose end, an irrigation system or a pool, from siphoning back into the drinking water supply if pressure in the main drops. That direction of flow is rare, but it is the entire reason the device is required on qualifying connections in the first place.
Florida requires annual testing on most backflow prevention assemblies, performed by a certified tester and reported to the local water utility, not a one-time install-and-forget device. A failed test usually means a worn seat or spring inside the assembly rather than the whole unit needing replacement, and is typically resolved in the same visit as the test itself.
Questions
Backflow prevention, answered
Is backflow testing actually required, or optional?
In most of Broward County, annual testing is required for irrigation systems and certain commercial connections. Requirements can vary by municipality.
What happens if my device fails the test?
It needs to be repaired or replaced, and retested, before the property is considered compliant again.
Do I need a backflow preventer if I only have a house, no irrigation?
It depends on your specific connection to the municipal system. A plumber can tell you what applies to your property.
How long does an annual test take?
Most residential tests are completed in well under an hour.
Live dispatch
Annual testing due, or a device that failed?
Call to schedule a test or a repair. A plumber can confirm what your property needs.
No obligation to book after the call.