Theo, wow, never heard of such a thing as aeration in a septic tank. Another subject I thought I knew something about but don't. As I get older I realize more and more what I don't know. Suppose it is required to get better bacterial action in the tank, we all know how that helps. I found the web site for makers of the Pro Lab stuff I referenced in my previous post. Sent them an email asking about using it for ponds. I noticed on their web site that they recommend it for reclaiming lagoons. I'll post whatever they come back with in case anyone is interested.
