I have no gripe with any one, the orginal spirit of the thread was asking if it worked. We use silver on wound preps here at work and it works. I have do have references of the sources of bacterialcide of but none on alagecide. If I offeneded any one I give my most humble apologies but I was doing the research for my self due to I got "pool stored" and posted my results and conclusions. Waterbear had already proved from the copper side that the concretions were too low to be much use as a copper algaecide so I was looking at the silver. I feel kinda stupid after for letting my self get "pool stored" on this one. After 12 years in a medical lab I should have known better.
Sorry if I ticked any one off
Steve