Posted 8/25/2010 21:47 (#1332331 - in reply to #1331865) Subject: Re: copper sulfate?
Flora IL
its the only thing that takes care of algea....thank god we figured it out 4 years ago.... its hard to kill it since you don't have agitation like a pool does so thats why pool materials don't work..ran across this and have been telling people about it for a good while..