In a message dated 5/2/2002 6:01:07 PM Pacific Daylight Time, [email protected] writes:
> > I know they say that the prills add nothing to the water but that is not > true. I started with R.O. water at 6 ppm TDS and wound up with water at > 83ppm TDS or about 1/2 the TDS of our municipal water which is at 170 to > 190 ppm. > Please, what is TDS?

