What type of backflow prevention device is the most reliable for a sprinkler system?

Answer: No preference
Explanation: The installation of your back flow device is determined by the health hazard and if you will be using a fertilizer injector or not.

Answer: Pressure vacuum breaker
Explanation: A pressure vacuum breaker (PVB) is a type of backflow prevention device, used to keep non-potable (or contaminated) water from entering the water supply. City codes require a pressure vacuum breaker be installed on all irrigation systems.

Answer: Reduced pressure backflow preventer
Explanation: This give you the most amount of protection

Answer: Pressure vacuum breaker
Explanation: Most irrigation systems utilize the AVB (atmospheric vacuum breaker). These back flow devices are economical and effective. Prior to installing any irrigation system, it is best to check your local building codes for specifications or requirements. Some systems may require alternate back flow devices.

Answer: Double check valve
Explanation: Of this list, Double Check Valves would be the most reliable as in the name - double check.

Answer: No preference
Explanation: as long a s there maintain all about the same

Answer: Double check valve
Explanation: Check with your local building department for there requirements.

Answer: Pressure vacuum breaker
Explanation: Pressure vacuum breaker are required in most cities.

Answer: Check valve
Explanation: Backflow prevention devices vary by state and municipalities local codes...each typr has a specific set of conditions they are used for.

Answer: Reduced pressure backflow preventer
Explanation: Other than an air gap, nothing is better than the RPZ. They are costly and need to be tested annually so alot of companies will put in the double check valve instead.

Answer: Check valve
Explanation: A check valve prevents non-potable water from entering back into your potable water supply. A double check valve will perform the same service. I don't recommend vacuum breakers.

Answer: Reduced pressure backflow preventer
Explanation: Which kind of device used depends on the size and elevation changes of the system. Overall a reduced pressure backflow preventer is the least likely to fail.

Answer: Pressure vacuum breaker
Explanation: Pressure vacuum breakers and Double Check valves both work great.

Answer: Not sure
Explanation: Please clarify, is the back flow for a fire sprinkler system or a lawn sprinkler system?

Answer: Double check valve
Explanation: The type of back flow valve to use is determined by the risk off a potential health hazard.

Answer: Reduced pressure backflow preventer
Explanation: RP backflow preventers are although a double check backflow preventer is quite adequate