Backflow prevention, cross connection: What is it and what does it have to do with me?
A water cross connection is an actual or potential connection between a public water supply or consumer’s water system and any source or system containing non-potable water or other substances. Potable water connections would include but not be limited to: water closets, urinals, sinks, hose bibs, dishwashers, lawn irrigation systems, AC units and hundreds of other possible connections.