If levels of legionella colonization are controlled within acceptable ranges, or there are no known or suspected cases of Legionellosis, site analysis once per week and lab analysis once per month.
If levels of legionella colonization are undesirable, or there are suspected or known cases of Legionellosis, site analysis twice per week, and lab analysis weekly – preferably Monday.
Site Copper Testing
At least two samples need to be collected per system. More samples can be required depending upon the complexity of the plumbing system. One sample should be collected from the treated water supply, and the second should be from a location far away from the water supply (distal).
Lab Testing for Copper / Silver levels
Lab testing, which is the only way to accurately measure silver, reveals whether copper and silver levels are within optimal ranges and determines whether system adjustments are needed.