One huge change that came with the new Minnesota State Plumbing Code that went into effect on January 23rd of this year was the requirement for annual backflow preventer testing. Here's the exact code ...

SPRINGFIELD, Mo. - (KY3) On this first day of spring, On Your Side reminds you to get your backflow test done, especially if you have a sprinkler system. It’s the law. If you have a sprinkler system ...