Silver is a great for keeping water clean. However, added directly to the water, it will find its way into the body and the environment.
Despite its many technical advantages, the use of silver is viewed critically. This is true for both dissolved ions and silver nano-particles*. In order to safeguard environment and health, meeting the minimization requirement is paramount.
During the process of water purification and distribution, no more than the technically feasible and economically justifiable minimum of contaminants from purification chemicals and other materials may be released into the drinking water. Thus, the minimization requirement is aiming for natural and anthropogenically uncontaminated drinking water.
In order to use silver responsibly it is crucial that only the technically unavoidable amount of silver be released into the water.
* AgNPs, Uptake and Risk for Environmental Organisms, www.nanopartikel.info, Study on Oxidative Stress Caused by Nano-Silver (07.2020, Dr. Stadelmann).