Point taken, I didn't consider that. Of course, it would still be easier to dispose of than etchant. Unless you just pour it down the drain :) Josh -- A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. -Douglas Adams William Chops Westfield wrote: > Ah, but you get NEW 'chemical problems.' Fine copper/fiberglass dust > is apparently pretty nasty stuff. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu