![TYCO Plumbing on Twitter: "We recently replaced this #backflow preventer. The #sprinkler system was not completely drained, causing the #pipe to burst during a freeze. https://t.co/S5sUhBYBkW" / Twitter TYCO Plumbing on Twitter: "We recently replaced this #backflow preventer. The #sprinkler system was not completely drained, causing the #pipe to burst during a freeze. https://t.co/S5sUhBYBkW" / Twitter](https://pbs.twimg.com/media/C65L4PoVsAAum9b.jpg)
TYCO Plumbing on Twitter: "We recently replaced this #backflow preventer. The #sprinkler system was not completely drained, causing the #pipe to burst during a freeze. https://t.co/S5sUhBYBkW" / Twitter
![NEW Delaware Law: Backflow Preventer Installation and Benefits - Cochran Oil and Federal Mechanical Contractors NEW Delaware Law: Backflow Preventer Installation and Benefits - Cochran Oil and Federal Mechanical Contractors](http://www.cochranoil.com/wp-content/uploads/2019/06/image.png)
NEW Delaware Law: Backflow Preventer Installation and Benefits - Cochran Oil and Federal Mechanical Contractors
![The air line is connected upstream of the backflow preventer. | Irrigation system, Irrigation, Outdoor decor The air line is connected upstream of the backflow preventer. | Irrigation system, Irrigation, Outdoor decor](https://i.pinimg.com/originals/f9/cb/04/f9cb04e696675fd44820f80dc1f2ac4e.jpg)