I'd like to have a nickle for every time I done that ('remembered' the wrong constant). I'd be retired to the south seas right now. In round numbers, 1 atmosphere is about 33.92 feet of water, more or less. Barry King wrote: > I wrote: > I remembered the wrong constant. 32 "feet of water" is about 1 > atmosphere. Jim's answer is right, I think. I wouldn't go so far as to say that -- that I'm right. Jim -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu