My email lately has contained quite a bit of news and even questions about the latest water contaminant, PFAS. The real name for PFAS is a great big long string of words that I will not get into today. PFAS seems to be the latest contaminant of choice, and is the new darling of the media and our public health groups. In the future, I will write about PFAS and the issues arising from it, and I want you to be aware I am aware of this new contaminant. I have been writing about iron in water, and I will continue to do so.
In my last column, I talked about the two types of iron found in groundwater: ferric and ferrous. I also wrote about how to handle ferric iron, or rust. A simple cartridge filter will do a pretty good job of removing this visible iron. The downside of a cartridge filter, as I wrote last month, is that they must be changed, sometimes frequently, and they really have rather limited flow capacities.