On Mon, 22 Dec 2008 17:50:36 -0800, "Azotic" wrote:

Drywall imported from China during the homebuilding boom years of 2004 and
2005 was made with waste materials from scrubbers on coal-fired power
plants.

Those materials leak into the air as gases and combine with the moisture on
an air conditioning coil to create sulfuric acid, which appears to be
dissolving solder joints and copper tubing - creating leaks, blackening the
coils and even causing the system to fail.

http://www.news-press.com/article/20.../81220026/1076

Best Regards
Tom.


*Sulfur*? That's it? Cardboard gives off sulfur too. And a bunch of it
usually is in dried fruit which you actually eat (and it's enough to
make for quite odiferous emissions out the exhaust-- eat a couple of
pounds of dried apricots and see what happens). No big deal, but I
guess in tough times some folks are working overtime looking for ways
to get out of their commitments.