Medical and commercial type Copper silver ionization solutions have been on the market for over 20 years. These larger and powerful Legionella growth control and prevention systems can easily and discreetly be installed in either a point-of-entry (POE) or domestic hot water (DHW) area of a facility. The technology is extremely well documented by industry experts and is known completely saturate a facility within 10 to 45 minutes and provides long lasting biofilm penetration within 30 to 45 days. The technology is stable in all water temperatures, produces no chemical odours, does not discolour the water when properly calibrated, requires a smaller technology footprint than chemical feeders, does not require chemical storage, recognised by the CDC, EPA and WHY, no corrosion, no dangerous by-products such as THMs, easy to install and easy to use. Has never failed when properly sized, calibrated and maintained.