"Jeff Wisnia" wrote in message
news:ZPSdnVQDKp17lkrfRVn-



P.S. Here in Taxachusetts the dentists have to rig the spit sinks at each
of their chairs with filtration systems to trap whatever solids their
patients expectorate, to keep mercury from drilled out amalgam fillings
from ending up in the sewage. Seems a bit of a stretch to me though. It
was probably lobbied for like Hell by the sellers of those filters.



Spit sink!?!? I thought those went the way of the dinosaur. Haven't seen one
of those in a dentists office for a long time, 20+ years or more.

Lane