With modern technology- moisture meters and infrared thermography- home inspectors can find water issues that aren’t visible with the naked eye. This photograph shows underlying saturation adjacent a toilet that needs to be reset with a new wax ring. Hopefully there isn’t underlying damage; they’ll find out when the toilet is pulled. I use moisture meters to probe around toilets, showers, sinks, dishwashers, and any suspicious areas to confirm elevated moisture conditions. It’s a valuable tool for sure. This photograph was taken at a recent home inspection in Oak Harbor on Whidbey Island.