I had a small leak from a cracked fitting, I contact Nu Aqua and received a fast response. Later from water dripping on the ballast (I assume) the ballast shorted out. I again contacted Nu Aqua and they sent me a new ballast. The system has been working great. Amazing tasting water from the boosted system with UV light and mineral filter. Very complex system with high and low pressure switches and a switch that's shuts off the UV light when not running, something other systems do not include. I also verified that there is zero waste water when the system is not running, sometimes a problem with RO systems. All is good!