It's the cool months.
Wild guesses from an untamed imagination.

 You are in London and they heat with coal?

..or was that 100 years ago in Disney movies where women used umbrellas to fly around with...[having progressed from brooms] ....but now have to walk to a bus stop and can't just appear out of thick air.

Hydrogen Sulfide gas + water vapor makes sulfuric acid which is quite conductive.
Down wind from a coal fired power plant?

Closed in, well insulated space? [Carbon dioxide + water vapor makes carbonic acid ]

Anything in the air will condense on a cooler surface just like the water vapor and distilled water is a very good solvent.

..might want to try a different collection container, it could be leaching contaminants out of the glass itself...glass is not absolutely impermeable.


 Ode


At 04:30 PM 11/15/2009 +0000, you wrote:
I've just double distilled my water which read on the TDS meter 002 - now it reads 003! What am I doing wrong PLEEASE? dee

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