Karen Hohout at rdo@rdo-apex.com - presumably the guys that MAKE that strange
yellow RDO decalcifier - doesn't know what that black grunge is that
precipitates out of RDO all the time?

I've been wondering that for years. You mean THEY don't know either?

I have some ideas - but mind you, I just finished my first Harry Potter book
before sending it off to my grandson. - It involves wizards and owls.

Bob Richmond
Samurai Pathologist
Knoxville TN