Question for Rich: When you do autopsies on tubes, what do you do with the vacuum? You cannot let it out, because it is not there. Is it possible to open or release a vacuum? K7FM --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.445 / Virus Database: 250 - Release Date: 1/21/03