Green lawns are a big part of the Summerfield look, and most of them are watered by irrigation systems tied to the same water line that feeds your kitchen tap. A backflow prevention assembly sits between the two, keeping fertilizer, lawn chemicals and stagnant water out of the drinking supply. K&K Plumbing provides backflow testing in Summerfield FL, plus repairs, rebuilds and new assemblies for homes and commercial properties.
How Backflow Happens
Water normally moves one direction, from the main toward your fixtures. That changes when:
- Pressure drops in the public main, such as during a line break or heavy firefighting demand, pulling water backward (back-siphonage)
- Pressure on your side rises above supply pressure, from a booster pump or elevated tank, pushing water the wrong way (backpressure)
Without a working assembly, water from sprinkler lines, which can contain fertilizer, pesticides and bacteria, could enter the potable supply.
The Devices We Test
Pressure Vacuum Breaker (PVB). The most common device on residential irrigation. It opens to air if pressure drops, stopping back-siphonage.
Reduced Pressure Zone assembly (RPZ). Used where the hazard is higher, such as systems with chemical injection or certain commercial uses. It has two checks and a relief valve that discharges water when something is wrong.
Double Check Valve assembly (DC). Two independent check valves in series, common on some commercial and fire service lines.
Your water provider determines which type is required for each connection, and we follow their requirements.
Inside a Test Visit
- We confirm the device type, size and location
- A calibrated gauge set connects to the test cocks
- Each check valve and relief valve is tested against its required readings
- Water is restored and the results are recorded
- You receive the paperwork, and we can submit it where your provider asks for it
When a Device Fails
Failures are common and fixable. Sand or debris lodged in a check, a worn rubber seat, a weak spring or a cracked bonnet from a past freeze are typical causes. We explain the finding, quote the repair upfront, make the fix and retest the device.
Commercial and Multi-Use Properties
Businesses along the US-301 and US-27/441 corridors often have more than one assembly: one on the domestic service, another on irrigation, and sometimes a separate device on a fire line or equipment feed. Restaurants, medical offices, car washes and shops with chemical dispensers each carry their own cross-connection risks. We keep track of every device on the property, schedule testing around business hours where we can, and give you organized results so nothing slips past a deadline.
Protecting Your Assembly Year-Round
- Keep mowers and string trimmers away from the device
- Insulate it before the occasional hard freeze
- Do not let shrubs grow over it; testers need clear access
- Call if you see water spitting from an RPZ relief port, which signals a problem
Our article on why backflow testing matters for Florida homeowners covers the health side in more depth.
Testing From a Licensed Local Contractor
Our backflow technicians work for a family-run, state-licensed plumbing company (CFC1431523) that has served South Marion County since 2009. Find assembly types and testing details on our backflow prevention page, see the full range of local work on the Summerfield page, or view our Ocala backflow testing up the road.
Notice deadline coming up? Call or text 352-810-9472 and we will book a backflow test at your Summerfield property.