“Too often home owners trust the water implicitly when a Residential UV System is installed.”
When you purchased a UV System it was to protect the water in your home, cottage or business from bacteria present in water. It is likely that no one informed you of the risk associated with Power Outages or Proper Maintenance and the assumption is made that if the power light is on, the system is working properly and treating the water. This is not always the case.
There are many risks for water cross contamination in a home.