What are the maintenance requirements for backflow prevention assemblies?

We received a tip from our pump man to give Nolan Plumbing a try as, he related, he'd heard their employee turnover was low. I called them to repair a sprinkler crushed by the garbage truck and a line cracked by a tree truck. They surprised me by getting a crew out within the hour. The employees were competent, professional, efficient and respectful. They checked out the entire system and repaired another sprinkler head that we didn't realize was faulty. I mentioned yet another sprinkler that never flowed properly since it was installed and he had an idea a piece of debris was partially blocking the line, which on investigation, turned out to be the case. I was very happy they corrected all these irrigation problems in a short time for a reasonable price. It was a pleasure having them on our property

-Daisy and Vince Stanilonis
Middleburg, Florida

Daisy and Vince Stanilonis Middleburg, Florida