http://www.freepatentsonline.com/6224779.html
try this
"PipeDown" wrote in message
news

First link from google when searching silver nitrate pool
http://www.algaebar.com/report.html
a little further down were webstores who sell the chemical but you'r
right, there are not any Systems. I think it is added manually
wrote in message
oups.com...
We've used chlorine and now bacquacil. I've heard that
there's another system -- I believe it's silver nitrate based, but
I may be wrong -- that's cheaper and more effective for SOME
pools and water types. We are in unincorporated land and use
well water. It's not bad -- bit of iron, use a softener. In the pool,
algae's a problem.
I have had NO luck getting information on this pool maintenance
system.
Does anyone have any experience with this or know anything
about it?
Thanks!
Mark