Hi Bob, I would suspect that the water department has increased the chlorine content to speed up the decontanination. The chlorine will precipate the silver ions into silver chloride, which is 1/10 as effective as the ions.
"Ole Bob" -- The silver-list is a moderated forum for discussion of colloidal silver. Instructions for unsubscribing may be found at: http://silverlist.org To post, address your message to: [email protected] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>

