About ten years ago I sat through a funding pitch for a monitor that detects sudden changes in residential water flow rates.  Cost was about $250&#x2F;home, and part of the pitch was that insurance companies would help cover the cost to save catastrophic damage.  Apparently washing machine hoses burst on a regular basis, and such an event in an unoccupied home is very expensive.  I haven&#x27;t heard anything about that problem&#x2F;solution since.