On Wed, 12 Sep 2007 03:31:14 +0000, Larry wrote:

The test is the TDS meter and electrical conductivity. Distilled water
is an insulator. These carbon-based chemicals you list attach themselves
very nicely to the carbon molecules in the activated carbon filter. That
filter gets quite hot in their presence during use, even at the tiny
trickle of water coming from a small distiller.

Gasoline is an insulator. Conductivity tests only detect ions.
Hydrocarbons do not ionize and are really good insulators. They fill
transformers that operate at hundreds of thousands of volts, with oil.
By the way, there is no such thing as a carbon molecule.

Casady