Uses and advantages of backflow preventer

Most people do not think of contaminants getting into their water supply via their irrigation system, but this can actually occur and it can be dangerous. Contaminants can transfer or backflow from your irrigation line into the water supply in your home. The valve that turns your water on and off may not be enough to keep the backflow from occurring, which is why it is recommended that you install a backflow preventer on any irrigation system that you install residentially or commercially. There are different types of backflow preventers, so it is important that you choose the right one for your needs. Here are the various types of backflow preventers that can be used for commercially and residentially

Reduced pressure type backflow preventer is normally used in industrial uses, because it is made for high hazard usage. It can be quite expensive as well, which is why it is much more commonly used in commercial settings. It needs to be installed 12 inches above the ground, so that it can work most efficiently. Outside installation is most commonly recommended, because they can spit out water if they detect backflow or if they break down. If you install this backflow preventer indoors, it is essential that you to make sure that there is a drain that will remove the water from inside your home or business.

It is suggested to double check backflow preventer. This is a double-valved system that has a shut-off valve on each end to prevent backflow. The two seals in the system work together to prevent contaminated water from flowing back into the water system of your home. It is important to check with your local officials if you are considering this type of backflow preventer, because they are considered illegal for use in some areas of the country.

Atmospheric vacuum breaker is the most expensive of the backflow preventers. The AVB is installed on the line right after the control valve and if your irrigation system has more than one control valve, an AVB must be installed after every control valve to do its job properly. It needs to be installed 6-inches above the highest sprinkler head, drip emitter outlet, or bubbler.

Anti-siphon valve is an automatic or manual control valve that has a built-in atmospheric vacuum beaker. This is the most common backflow preventer that is used in residential applications, because they are not that expensive and they are simple to use and install. However, some cities do not allow this type of backflow preventer, so check with your local officials to make sure that it is legal to use it on your home.

The different types of backflow preventers may make it seem like an overwhelming decision, but by doing your research and contacting your local officials, you can determine which one will work best for you and your needs.

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