I know how TDS is measured, I've never heard of 13 to 15 ppm out of a tap.
TDS in the neighborhood of 9-25 is pretty much the norm over here on the west coast. It'll go up a bit when the municipality cleans the water mains or when there is a big rain that increases sediment as RuGlu6 mentioned.
viperfish
03-19-2010 03:15 PM
Now that is amazing! Your RO system must last forever. In Medicine Hat we are in excess of 200.
