What you need to know about testing your backflow water device | VERIFY

Someone on social media posted a letter they received from the city of Charlotte about their backflow water device. The letter said they are due for an annual inspection that they need to schedule themselves.
They wanted to know if this was legit.
WCNC Charlotte's #VERIFY team looked into it.
FULL STORY: www.wcnc.com/article/news/ver...