The truth is that my dad has been quite ill for the past several months, and most of my time that ordinarily goes to photography has been devoted to him.
As for my distilled vs RO decision, I have not purchased either yet. My leaning is toward a very small commercial distilled system - used if I can find one in good shape. One time cost compared to the recurring costs of an RO system is my criteria.
But for the foreseeable future my dad's needs will take priority. Photography is just a hobby, after all.