For Backflow Prevention in KC

Web Design for Backflow Preventer Companies in Kansas City

Backflow preventer customers are homeowners and property managers who received a notice from Kansas City Water Services requiring annual testing of an installed device, irrigation system owners who need a pressure vacuum breaker installed to protect the potable water supply, or commercial properties with a reduced pressure zone assembly that failed its annual test. The central education is what backflow is and why it is a genuine public health hazard: backflow occurs when a pressure drop in the public water main (from a water main break, firefighting drawdown, or distribution surge) creates negative pressure that can draw water backward from a private system into the public supply — water that may contain fertilizers, pesticides, pool chemicals, or industrial fluids. Cross-connection: any physical link between the potable water supply and a non-potable source — an irrigation head sitting in standing water is a cross-connection; a chemical injector on a boiler loop tied to the domestic supply is a cross-connection. Device types: pressure vacuum breaker (PVB) — a spring-loaded check valve with an air inlet that opens on pressure loss, preventing siphonage — correct for irrigation systems where the device is always installed above the highest downstream outlet (at least 12" above grade); PVBs are not rated for backpressure conditions. Double check valve assembly (DCVA): two independent check valves in series — rated for low-hazard cross-connections where backpressure is possible (boiler makeup water, fire suppression connections at low hazard); not rated for high-hazard applications. Reduced pressure zone device (RPZ): two check valves with a pressure-differential relief valve between them — the relief zone is maintained at lower pressure than the supply, so any backflow event is discharged to atmosphere rather than entering the supply — required for high-hazard applications (chemical injection, irrigation with fertilizer injection, pools, industrial processes). Kansas City Water Services and most Missouri municipalities require annual testing of all testable assemblies (DCVA and RPZ); PVBs are inspected visually but typically not annually tested. Failed test consequences: the water utility notifies the property owner and can discontinue water service for unresolved non-compliance. A backflow website that explains the cross-connection hazard, which device type is required for irrigation vs. high-hazard vs. fire suppression, and what an annual test actually checks earns the property manager who received a city notice and does not know what they have installed.