Positive or Negative?
Google is your friend. I googled this up. You overpressure the house, and
then the smoke will flow right towards the leak. It showed a blower that
goes into a window space.
I looked at smoke pens, and boy, are they expensive. I think I will use a
cotton cord, or dig out some of the Patchouli incense sticks left over from
the hippie years.
Steve
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