"...Flocculation does nothing to purify the water, it only removes suspended solids..."

Heck, I can do that with a coffee filter. Guess I will pass. Thanks for the info.

Years ago the Navy built a new air station in central California, with a super sewage system, it was going to put pure water into the nearby river. Yeah, right. In no time at all they had plain old sewage ponds all over the place. Guess it didn't work as advertised...