The small community where we have lived for almost a year does not soften their water. It is extremely hard well water. Along with that it has high iron levels. They do remove most of the iron, but some still makes it through. It was difficult to say the least to get a decent lather made with this stuff. I just got our water softener going this week. I had enough lather this morning for 3 passes in less time than I could produce one pass before, and the quality was not even comparable. I've only been using soap and brush for a few months, and I was getting frustrated with having to hassle with distilled water if I wanted decent lather. Definitely made my week.