It sounds like an episode of "The Andy Griffith Show," but when an inmate took a flip-flip to a sprinkler in the OK County ...

PRNewswire/ -- "I wanted to create a cap device for ground-based sprinkler systems to prevent unwanted trash, dirt, and debris ...

The patent-pending invention provides a specialized hardware cap device to prevent debris from entering a ground-based outdoor sprinkler system via any backflow valve threaded pipe opening.