Quote:
Originally Posted by kydsid
RO water has minerals. Much much less than other sources but more than distilled and enough for coffee. This was at least the line we used along with some data when I sold culligan ro systems.  |
RO systems, in optimal conditions, are fed soft water, which, by definition, removes calcium carbonate, which is the hardness, or "minerals" most commonly referred to in water treatment jargon. Depending of the efficiency of the actual RO unit, the TDS levels are very very low, and comparable enough to distilled to make no essential difference.