rrc124+@PITT.EDU wrote: > Figuring an approx tank diameter of 12 inches, we get a base > area of 113 in^2 so i think that would mean 0.37 psi or so. What has the diameter and the area to do with the pressure ? AFAI, it's *only* the distans from the surface to the the measuring point that counts (and the specific weight of the liquid, of course). It's the same pressure on the bottom of a 2 m high, 1" diameter, water filled tube as 2 m down in the Atlantic... Jan-Erik. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body