Many claims have been made in the last couple years regarding the effectiveness of copper silver ionization systems. For a long time chlorine disinfection systems were the default solution to Legionella eradication. Despite this, hospitals have long considered copper silver ionization the gold standard for preventing Legionnaires’ disease. The LiquiTech copper silver system disperses positively charged copper and silver ions into the water system. It is a registered solution with federal and state Environmental Protection Agencies for killing Legionella in drinking water. It has been validated in more than 100 clinical articles as the most effective water disinfection technology to effectively manage outcomes. These copper silver systems became popular shortly after it was discovered 75% of infections come through drinking water and only 25% from cooling towers. Because of this, prevention became heavily stressed. The frequent testing of water in facilities should occur frequently, rather than waiting until someone gets sick first.

The CDC has performed multiple tests regarding copper silver ionization systems. Claressa Lucas, a CDC microbiologist, found that the manufacturer’s suggested amounts of copper and silver “resulted in a significant decrease in viability in Legionella at 24 hours”. This shows that copper silver systems are very effective in controlling Legionella. Several years ago, there was an incident involving a facility using copper silver ionization systems. The systems were blamed for not being effective. However, a comprehensive investigation by journalist Sean Hamill of the Pittsburg Post-Gazette has helped to vindicate copper silver ionization with proper testing and monitoring as an effective solution.

Click here for part 1 and part 2 of the investigation.

Just like your car, routine and regular maintenance is required so that you don’t end up broken down on the side of the road. The same idea can be applied to copper silver ionization systems regarding Legionella. In order to control Legionella, routine maintenance and manufacturer’s guidelines need to be followed.

Moving forward, in June 2016, the Centers for Disease Control and Prevention released a new toolkit for building owners and managers. It endorses regular testing for Legionella in drinking water as part of water management strategies and names copper silver ionization as an effective means of preventing the growth of Legionella.

Read more about the issue on the press release developed by LiquiTech here.