If your home has sprinklers or a swimming pool, you already know about backflow prevention assemblies. This device, usually ...

Find his work on sites like Angi, USA Today and The Pen... Backflow preventer installation costs between $105 and $1,400, with the average property owner spending $325 per backflow preventer.

“Backflow preventers are required on all water lines, including irrigation systems,” explains a Broussard Services ...