This device is subject to failure, as with anything mechanical, so it is required to be replaced at least every 10 years or on replacement of the water meter to ensure the drinking water system is protected. It is not equipped with test ports.

Dual check valvevs doublecheck valve

In a backpressure condition, the increase in pressure will force the checks to close tighter. If the second check is not working, the first check can act as a backup to stop the backpressure from going through the device.

Dual Check ValveBackflow preventer

Look for information packet to be hung on your front door handle, followed by a blue door hanger, prior to installation.

Every drinking water system in Florida must have a cross connection control program, more commonly known as a backflow prevention program. (See Section 62-555.360 Cross Connection Control for Public Water Systems) https://www.flrules.org/gateway/ruleno.asp?id=62-555.360&Section=0

The Dual Check Valve backflow preventer device is a mechanical device designed to prevent backflow into the residential water system, it consists of two independently acting, spring-loaded check valves and is effective against backpressure and back-siphonage.  The device is only approved for residential service connections.

WattsDual Check Valve

ASSE 1012-2021Performance Requirements for Backflow Preventers with an Intermediate Atmospheric VentANSI Approved: November 2021Backflow preventers with intermediate atmospheric vent (herein referred to as the “device”) are installed in the plumbing system to prevent backflow into potable water supply lines when pressure is temporarily higher in the polluted part of the system than in the potable water piping. Devices covered by ASSE 1012-2021 have functional capabilities for preventing both backsiphonage and backpressure, and can operate under continuous or intermittent pressure conditions. These devices have two independently operating check valves separated by an intermediate chamber with a means for automatically venting it to the atmosphere and can be installed in the horizontal, vertical up, or vertical down orientations. The check valves are force loaded to a normally closed position and the venting means is force loaded to a normally open position.

Pursuant to Chapter 50.40 Cross Connection Control Program Code of Ordinances City of Pembroke Pines “The minimum backflow protection to be provided and the different categories of facilities that require backflow preventers, as required by the city, are listed in Table 62-555.360-2 of the Florida Administrative Code. Residential Service Connection - DuC Minimum (owned and installed by city personnel when setting the meter) (refurbished or replaced every ten years by city.”

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On May 5, 2014 the state regulations (Florida Administrative Code (FAC) Chapter 62) related to protecting the public water supply were changed significantly.